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Science Simplified!

                       JAI VIGNAN

All about Science - to remove misconceptions and encourage scientific temper

Communicating science to the common people

'To make  them see the world differently through the beautiful lense of  science'

Members: 22
Latest Activity: yesterday

         WE LOVE SCIENCE HERE BECAUSE IT IS A MANY SPLENDOURED THING

     THIS  IS A WAR ZONE WHERE SCIENCE FIGHTS WITH NONSENSE AND WINS                                               

“The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.”             

                    "Being a scientist is a state of mind, not a profession!"

                  "Science, when it's done right, can yield amazing things".

         The Reach of Scientific Research From Labs to Laymen

The aim of science is not only to open a door to infinite knowledge and                                     wisdom but to set a limit to infinite error.

"Knowledge is a Superpower but the irony is you cannot get enough of it with ever increasing data base unless you try to keep up with it constantly and in the right way!" The best education comes from learning from people who know what they are exactly talking about.

Science is this glorious adventure into the unknown, the opportunity to discover things that nobody knew before. And that’s just an experience that’s not to be missed. But it’s also a motivated effort to try to help humankind. And maybe that’s just by increasing human knowledge—because that’s a way to make us a nobler species.

If you are scientifically literate the world looks very different to you.

We do science and science communication not because they are easy but because they are difficult!

“Science is not a subject you studied in school. It’s life. We 're brought into existence by it!"

 Links to some important articles :

1. Interactive science series...

a. how-to-do-research-and-write-research-papers-part 13

b. Some Qs people asked me on science and my replies to them...

Part 6part-10part-11part-12, part 14  ,  part- 8

part- 1part-2part-4part-5part-16part-17part-18 , part-19 , part-20

part-21 , part-22part-23part-24part-25part-26part-27 , part-28

part-29part-30part-31part-32part-33part-34part-35part-36part-37,

 part-38part-40part-41part-42part-43part-44part-45part-46part-47

Part 48 part49Critical thinking -part 50 , part -51part-52part-53

part-54part-55part-57part-58part-59part-60part-61part-62part-63

part 64, part-65part-66part-67part-68part 69part-70 part-71part-73 ...

.......306

BP variations during pregnancy part-72

who is responsible for the gender of  their children - a man or a woman -part-56

c. some-questions-people-asked-me-on-science-based-on-my-art-and-poems -part-7

d. science-s-rules-are-unyielding-they-will-not-be-bent-for-anybody-part-3-

e. debate-between-scientists-and-people-who-practice-and-propagate-pseudo-science - part -9

f. why astrology is pseudo-science part 15

g. How Science is demolishing patriarchal ideas - part-39

2. in-defence-of-mangalyaan-why-even-developing-countries-like-india need space research programmes

3. Science communication series:

a. science-communication - part 1

b. how-scienitsts-should-communicate-with-laymen - part 2

c. main-challenges-of-science-communication-and-how-to-overcome-them - part 3

d. the-importance-of-science-communication-through-art- part 4

e. why-science-communication-is-geting worse - part  5

f. why-science-journalism-is-not-taken-seriously-in-this-part-of-the-world - part 6

g. blogs-the-best-bet-to-communicate-science-by-scientists- part 7

h. why-it-is-difficult-for-scientists-to-debate-controversial-issues - part 8

i. science-writers-and-communicators-where-are-you - part 9

j. shooting-the-messengers-for-a-different-reason-for-conveying-the- part 10

k. why-is-science-journalism-different-from-other-forms-of-journalism - part 11

l.  golden-rules-of-science-communication- Part 12

m. science-writers-should-develop-a-broader-view-to-put-things-in-th - part 13

n. an-informed-patient-is-the-most-cooperative-one -part 14

o. the-risks-scientists-will-have-to-face-while-communicating-science - part 15

p. the-most-difficult-part-of-science-communication - part 16

q. clarity-on-who-you-are-writing-for-is-important-before-sitting-to write a science story - part 17

r. science-communicators-get-thick-skinned-to-communicate-science-without-any-bias - part 18

s. is-post-truth-another-name-for-science-communication-failure?

t. why-is-it-difficult-for-scientists-to-have-high-eqs

u. art-and-literature-as-effective-aids-in-science-communication-and teaching

v.* some-qs-people-asked-me-on-science communication-and-my-replies-to-them

 ** qs-people-asked-me-on-science-and-my-replies-to-them-part-173

w. why-motivated-perception-influences-your-understanding-of-science

x. science-communication-in-uncertain-times

y. sci-com: why-keep-a-dog-and-bark-yourself

z. How to deal with sci com dilemmas?

 A+. sci-com-what-makes-a-story-news-worthy-in-science

 B+. is-a-perfect-language-important-in-writing-science-stories

C+. sci-com-how-much-entertainment-is-too-much-while-communicating-sc

D+. sci-com-why-can-t-everybody-understand-science-in-the-same-way

E+. how-to-successfully-negotiate-the-science-communication-maze

4. Health related topics:

a. why-antibiotic-resistance-is-increasing-and-how-scientists-are-tr

b. what-might-happen-when-you-take-lots-of-medicines

c. know-your-cesarean-facts-ladies

d. right-facts-about-menstruation

e. answer-to-the-question-why-on-big-c

f. how-scientists-are-identifying-new-preventive-measures-and-cures-

g. what-if-little-creatures-high-jack-your-brain-and-try-to-control-

h. who-knows-better?

i. mycotoxicoses

j. immunotherapy

k. can-rust-from-old-drinking-water-pipes-cause-health-problems

l. pvc-and-cpvc-pipes-should-not-be-used-for-drinking-water-supply

m. melioidosis

n.vaccine-woes

o. desensitization-and-transplant-success-story

p. do-you-think-the-medicines-you-are-taking-are-perfectly-alright-then revisit your position!

q. swine-flu-the-difficlulties-we-still-face-while-tackling-the-outb

r. dump-this-useless-information-into-a-garbage-bin-if-you-really-care about evidence based medicine

s. don-t-ignore-these-head-injuries

t. the-detoxification-scam

u. allergic- agony-caused-by-caterpillars-and-moths

General science: 

a.why-do-water-bodies-suddenly-change-colour

b. don-t-knock-down-your-own-life-line

c. the-most-menacing-animal-in-the-world

d. how-exo-planets-are-detected

e. the-importance-of-earth-s-magnetic-field

f. saving-tigers-from-extinction-is-still-a-travail

g. the-importance-of-snakes-in-our-eco-systems

h. understanding-reverse-osmosis

i. the-importance-of-microbiomes

j. crispr-cas9-gene-editing-technique-a-boon-to-fixing-defective-gen

k. biomimicry-a-solution-to-some-of-our-problems

5. the-dilemmas-scientists-face

6. why-we-get-contradictory-reports-in-science

7. be-alert-pseudo-science-and-anti-science-are-on-prowl

8. science-will-answer-your-questions-and-solve-your-problems

9. how-science-debunks-baseless-beliefs

10. climate-science-and-its-relevance

11. the-road-to-a-healthy-life

12. relative-truth-about-gm-crops-and-foods

13. intuition-based-work-is-bad-science

14. how-science-explains-near-death-experiences

15. just-studies-are-different-from-thorough-scientific-research

16. lab-scientists-versus-internet-scientists

17. can-you-challenge-science?

18. the-myth-of-ritual-working

19.science-and-superstitions-how-rational-thinking-can-make-you-work-better

20. comets-are-not-harmful-or-bad-omens-so-enjoy-the-clestial-shows

21. explanation-of-mysterious-lights-during-earthquakes

22. science-can-tell-what-constitutes-the-beauty-of-a-rose

23. what-lessons-can-science-learn-from-tragedies-like-these

24. the-specific-traits-of-a-scientific-mind

25. science-and-the-paranormal

26. are-these-inventions-and-discoveries-really-accidental-and-intuitive like the journalists say?

27. how-the-brain-of-a-polymath-copes-with-all-the-things-it-does

28. how-to-make-scientific-research-in-india-a-success-story

29. getting-rid-of-plastic-the-natural-way

30. why-some-interesting-things-happen-in-nature

31. real-life-stories-that-proves-how-science-helps-you

32. Science and trust series:

a. how-to-trust-science-stories-a-guide-for-common-man

b. trust-in-science-what-makes-people-waver

c. standing-up-for-science-showing-reasons-why-science-should-be-trusted

You will find the entire list of discussions here: http://kkartlab.in/group/some-science/forum

( Please go through the comments section below to find scientific research  reports posted on a daily basis and watch videos based on science)

Get interactive...

Please contact us if you want us to add any information or scientific explanation on any topic that interests you. We will try our level best to give you the right information.

Our mail ID: kkartlabin@gmail.com

Discussion Forum

Cancer Questions

Started by Dr. Krishna Kumari Challa. Last reply by Dr. Krishna Kumari Challa yesterday. 1 Reply

Q: Is it a fact that cancer is also genetically inherited? If so, how much percentage of cancer affected patients have genetically inherited cancer? K: While most cancers are not directly inherited,…Continue

What are wet bulb and dry bulb temperatures?

Started by Dr. Krishna Kumari Challa. Last reply by Dr. Krishna Kumari Challa yesterday. 1 Reply

Q: What are wet bulb and dry bulb temperatures?Krishna: Dry bulb temperature is the temperature of the air as measured by a standard thermometer, while wet bulb temperature is the temperature…Continue

Vaccine woes

Started by Dr. Krishna Kumari Challa. Last reply by Dr. Krishna Kumari Challa on Friday. 12 Replies

Recent measles outbreak in the California state of the US ( now spread to other states too) tells an interesting story.Vaccines are not responsible for the woes people face but because of rejection…Continue

Ask any astronaut whether what he is sensing in space is objective reality or subjective reality.

Started by Dr. Krishna Kumari Challa. Last reply by Dr. Krishna Kumari Challa on Friday. 1 Reply

Q: What is the definition of subjective reality? What is the definition of objective reality?Krishna: A person asked me this question sometime back:Why does our thinking differ so much? We are from…Continue

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Comment by Dr. Krishna Kumari Challa on March 6, 2025 at 11:05am

Microscopic particles of 'active matter' dance to the tune of electrochemical reactions

A new study has revealed a coordinated dance of microscopic particles—breaking up and clustering back together in just seconds—after receiving electrical and chemical stimuli. This work represents a new class of materials that mimic the behaviors of living organisms, known as "active matter."

Like the skins of chameleons and octopuses, which respond to external stimuli by changing colors, active matter can display dynamic and autonomous behavior including motility, assembly and swarming. The study published in Nature Communications, revealed a new mechanism to activate these properties within seconds.

 Medha Rath et al, Transient colloidal crystals fueled by electrochemical reaction products, Nature Communications (2025). DOI: 10.1038/s41467-025-57333-4

Comment by Dr. Krishna Kumari Challa on March 6, 2025 at 10:14am

Imagine a world where the fundamental constants are different and set the upper limit for TC at a mere millionth of a Kelvin. In such a universe, superconductivity would be undetectable, and we would never have discovered it. Conversely, in a universe where the limit is a million Kelvin, superconductors would be common—even in your electric kettle.

The wire would superconduct instead of heating up. Boiling water for tea would be a very different challenge. It therefore appears that the very reason the community is busy chasing up a room-temperature superconductor is that our fundamental constants set the upper limit of TC in the range 100–1000 K (the range of planetary conditions) where our "room" temperature is.
This research not only advances our understanding of superconductivity but also highlights the delicate balance of the constants that make our universe—and life within it—possible. For scientists and engineers, this work also provides a renewed sense of direction.

 Kostya Trachenko et al, Upper bounds on the highest phonon frequency and superconducting temperature from fundamental physical constants, Journal of Physics: Condensed Matter (2025). DOI: 10.1088/1361-648X/adbc39. On arXivDOI: 10.48550/arxiv.2406.08129

Part 2

Comment by Dr. Krishna Kumari Challa on March 6, 2025 at 10:13am

Room-temperature superconductors: Fundamental constants suggest they could exist within our universe

In a new development that could help redefine the future of technology, a team of physicists has uncovered a fundamental insight into the upper limit of superconducting temperature.

This research, accepted for publication in the Journal of Physics: Condensed Matter, suggests that room-temperature superconductivity—long considered the "holy grail" of condensed matter physics—may indeed be possible within the laws of our universe.

Superconductors, materials that can conduct electricity without resistance, have the potential to revolutionize energy transmission, medical imaging, and quantum computing. However, until now, they have only functioned at extremely low temperatures, making them impractical for widespread use. The race to find a superconductor that works at ambient conditions has been one of the most intense and elusive pursuits in modern science.

The researchers  reveal that the upper limit of superconducting temperature TC is intrinsically linked to the fundamental constants of nature—the electron mass, electron charge, and the Planck constant.

Constants such as these govern everything from the stability of atoms to the formation of stars and synthesis of carbon and other elements essential to life. The team's finding shows that the upper limit ranges from hundreds to a thousand Kelvin—a range that comfortably includes room temperature.

This discovery tells us that room-temperature superconductivity is not ruled out by fundamental constants.

The results have already been independently confirmed in a separate study, adding weight to the team's conclusions. But the implications go even further. By exploring how different values of these fundamental constants could alter the limits of superconductivity, the researchers have opened a fascinating window into the nature of our universe.

Part 1

Comment by Dr. Krishna Kumari Challa on March 6, 2025 at 8:37am

Bacteria use nano-spearguns to retaliate against attacks

Some bacteria deploy tiny spearguns to retaliate against rival attacks. Researchers  have mimicked attacks by poking bacteria with an ultra-sharp tip. Using this approach, they have uncovered that bacteria assemble their nanoweapons in response to cell envelope damage and rapidly strike back with high precision.

The research is published in the journal Science Advances.

In the world of microbes, peaceful coexistence goes hand in hand with fierce competition for nutrients and space. Certain bacteria outcompete rivals and fend off attackers by injecting them with a lethal cocktail using tiny, nano-sized spearguns, known as type VI secretion systems (T6SS).

Bacteria respond to cell envelope damage. 

Using atomic force microscopy (AFM), researchers have been able to mimic a bacterial T6SS attack. With the needle-like, ultra-sharp AFM tip, they could touch the bacterial surface, and by gradually increasing the pressure, puncture the outer and the inner membranes in a controlled manner.

In combination with fluorescence microscopy, the researchers revealed that the bacteria responded to outer membrane damage.

Within ten seconds the bacteria assembled their T6SS, often repeatedly, at the site of damage and fired back with pinpoint accuracy.

In the microbial ecosystem, survival is all about strategy, and Pseudomonas aeruginosa has certainly mastered the art of defense. Their targeted and swift retaliation against local attacks minimizes misfiring and optimizes the cost-benefit ratio.

This clever tactic gives Pseudomonas a survival advantage, enabling it to incapacitate attackers and thrive in diverse and often challenging environments.

Mitchell Brüderlin et al, Pseudomonas aeruginosa assembles H1-T6SS in response to physical and chemical damage of the outer membrane, Science Advances (2025). DOI: 10.1126/sciadv.adr1713

Comment by Dr. Krishna Kumari Challa on March 6, 2025 at 8:26am

Packets of freeze-dried bacteria can grow bio-cement on demand

Cement manufacturing and repair could be significantly improved by using biocement-producing bacteria, but growing the microbes at construction sites remains a challenge. Now, researchers report a freeze-drying approach in ACS Applied Materials & Interfaces that preserves the bacteria, potentially allowing construction workers to ultimately use powder out of a packet to quickly make tiles, repair oil wells or strengthen the ground for makeshift roads or camps.

Soil stabilization and concrete repair are major challenges facing civil engineers. Recently, researchers have shifted their attention to a tiny bacterium called Sporosarcina pasteurii that can produce a form of calcium mineral called biocement. The microbes break down urea and form ammonium and carbonate. Then, with the addition of calcium, the result is calcium carbonate, which glues sand and soil particles together or repairs cracks in existing concrete structures.

To make biocement for construction projects, the bacteria currently must be grown onsite with special equipment and technical know-how. So, researchers wanted to develop a way to preserve S. pasteurii in a shelf-stable format that would be easy for construction workers to use.

They were  inspired by manufacturers who freeze-dry biological components and add them to fertilizers. The researchers suspended the bacteria in different solutions and tested how well the microbes survived freezing. They found that sucrose protected the microbes best compared to other types of protectants. After freezing, the bacteria were dried and then stored in resealable plastic bags. Sucrose-treated S. pasteurii remained viable for at least three months.

Further laboratory testing showed that the sucrose-preserved, freeze-dried bacteria could be used to cement sand in 3D-printed cylindrical molds. The researchers prepared separate columns with play sand, like that used in children's sandboxes, and natural sandy soil taken from the ground. Then, when the columns were sprayed several times with calcium chloride and urea, the bacteria produced biocement. The biocement in the columns made with play sand was stronger than the biocement formed with soil, and most of the biocement samples could be removed from the play sand molds.

Matthew J. Tuttle et al, Shelf-Stable Sporosarcina pasteurii Formulation for Scalable Laboratory and Field-Based Production of Biocement, ACS Applied Materials & Interfaces (2025). DOI: 10.1021/acsami.4c15381

Comment by Dr. Krishna Kumari Challa on March 5, 2025 at 10:49am

The study found that the type of land plays a significant role in the density of lightning strikes. Firstly, North India (NI) generally experienced more lightning than Northeast India (NEI). However, the timing differs: NI sees a peak in lightning during the monsoon season (June to September), while NEI is more prone to lightning strikes during the pre-monsoon months (March to May).

Areas with lots of human activity, like farmland and cities, were also shown to have more lightning strikes. Without vegetation covering it around the year, the ground over farmlands heats up quickly, creating the perfect conditions for thunderstorms. Natural landscapes, like forests and grasslands, were shown to have moderate lightning activity, showing us that vegetation, which helps maintain high soil moisture, plays a role in lightning occurrences. Some natural areas, like savannas (grasslands with scattered trees) and wetlands, can also be lightning hotspots.

The mountains also matter. The research revealed that lightning is more common in the foothills of the Himalayas. It is likely caused by surface heating, where moisture-filled air gets pushed upwards, and orographic lifting (mountain formations) in Meghalaya. The height above sea level is also important. Most lightning happens at lower altitudes (below 1600 feet), and the frequency decreases as you go higher up the mountains, especially in North India. Finally, the study found that as farmland and cities expand, lightning activity tends to increase in those areas.

The study shows us that lightning isn't just a random event, instead, it's shaped by the landscape, the vegetation, and even human activities. Understanding these connections can guide safety measures and help farmers and city planners make informed decisions.

https://www.sciencedirect.com/science/article/abs/pii/S136468262500...

part2

Comment by Dr. Krishna Kumari Challa on March 5, 2025 at 10:48am

Lightning and Landscapes: How Land and Weather Shape Lightning in India

Lightning is one of the most spectacular natural phenomena, having captivated humans for centuries, sparking both awe and fear.

Today, scientists know exactly why lightning strikes, but predicting where it will strike is much more difficult due to all the factors at play. In fact, the word has become synonymous with unpredictability. But scientists all over the world are trying to uncover these mysteries.

In a new study, researchers have studied how the landscape affects lightning strikes. They have delved into understanding the frequency of lightning in North India (NI) and North-East India (NEI), discovering how land use and topography might predict when and where these electrical bursts will occur.

For their study, the researchers poured thorough data from the Lightning Imaging Sensor (LIS) on the Tropical Rainfall Measuring Mission (TRMM) satellite, recording the location and frequency of lightning strikes between 2001 and 2014. They then combined this lightning data with information about the different types of land in the area - forests, farms, cities, and so on -  obtained from another satellite, Moderate Resolution Imaging Spectroradiometer (MODIS). For topographical details, they consulted the Shuttle Radar Topography Mission or SRTM—a source of detailed 3D maps of Earth's surface.

They also looked at weather-related factors like temperature, humidity, and something called Convective Available Potential Energy (CAPE). CAPE measures how unstable the atmosphere is and how likely it is to produce thunderstorms. They also analysed total cloud cover liquid water (TCCLW) and total cloud cover ice water (TCCIW) along with lightning flash rate density (LFRD) to determine the local temperatures and amount of moisture in the air. They then used computer programs to classify each strike, overlaying their locations on MODIS images to see which land types were struck by lightning. By examining topographical elevations, they categorised these lightning locations by height, revealing patterns at different altitudes.

Part 1. 

Comment by Dr. Krishna Kumari Challa on March 5, 2025 at 10:33am

Current antivenom ineffective against a saw-scaled viper bite finds study

The ‘big four’ - Russell’s viper, saw-scaled viper, krait, and Indian cobra, are responsible for most of the snakebite incidents in India.

A new study has now shed light on a concerning issue: the antivenom used to treat bites from the saw-scaled viper (Echis carinatus sochureki) isn't as effective as it should be in certain regions. A team from the Indian Council of Medical Research (ICMR) studied data from a centre treating snakebite victims in Jodhpur, Rajasthan. They found that many patients bitten by the saw-scaled viper weren't responding well to the standard Indian polyvalent antivenom.

Antivenom is a unique mixture made from the antibodies of animals (usually horses) that have been exposed to snake venom. The polyvalent antivenom is designed to work against the venom of the big four snakes, including the saw-scaled viper. When a person is bitten by a venomous snake, the venom can cause a range of problems, from tissue damage and bleeding disorders to paralysis and even death. Antivenom works by binding to the venom in the body and neutralising its harmful effects. Ideally, it should quickly reverse the effects of the venom, allowing the person to recover fully.

The study found that over two-thirds (68.4%) of the patients who received antivenom didn't respond as expected. 103 of the 105 patients experienced venom-induced consumption coagulopathy (VICC), where the venom caused their blood to clot abnormally, leading to bleeding. Around 35% of patients also experienced local and specialised bleeding at the bite site and in other parts of their bodies. Meanwhile, 3 out of 4 patients  (75.7%) also experienced delayed Hypofibrinogenaemia, where their body wasn’t producing enough fibrinogen, a protein essential for blood clotting, even days after the bite. The researchers also found that patients who were bitten in certain areas (the ‘West zone’ of Rajasthan) and those who received higher doses of antivenom were more likely to be unresponsive.

The researchers think the most likely reason for the antivenom's ineffectiveness is that the venom of saw-scaled viper in Rajasthan is different from the venom used to produce the antivenom. Most of the venom used to make India’s polyvalent antivenom comes from saw-scaled vipers in South India. Snakes from different regions can have variations in their venom composition. This means that the antibodies in the antivenom may not bind as effectively to the venom of the vipers in Rajasthan, leaving the venom free to cause damage.

The researchers suggest that the most urgent need is to develop a region-specific antivenom tailored to the venom of Echis carinatus sochureki, the saw-scaled viper in Rajasthan and other regions. This would involve collecting venom from vipers in the region and using it to produce antivenom.

The research highlights a critical gap in our understanding of antivenom and our methods of administering it. The ineffectiveness of the current antivenom against saw-scaled viper venom is a serious concern that begs the question: Does the antivenom work in other regions? Does it work for other venomous snakebites? A comprehensive analysis is the need of the hour to know how we are fair in combating snakebites 

https://journals.plos.org/plosntds/article?id=10.1371/journal.pntd....

https://pubmed.ncbi.nlm.nih.gov/39749523/#:~:text=Conclusions%3A%20....

Comment by Dr. Krishna Kumari Challa on March 5, 2025 at 10:16am

Diesel exhaust exposure leads to disarray in liver function in mice; could also indicate health issues for humans

Health researchers have discovered significant changes in liver function following exposure to diesel exhaust (DE) in a controlled study involving mice. The study identified disrupted activity in 658 genes and 118 metabolites. These changes led to a higher production of triglycerides, fatty acids, and sugars, largely due to problems with mitochondria, an organelle in the cell responsible for energy production.

The research is published in the journal Particle and Fibre Toxicology.
The researchers also exposed liver cells to diesel particles and confirmed that the particles were sufficient to activate a gene called Pck1, which led to increased glucose production. Taking it one step further, the researchers inhibited Pck1 to tease out its function. This step reduced glucose levels, confirming Pck1's role in glucose production.

DE emissions play a large role in air pollution and its links to type 2 diabetes, fatty liver disease, cardiovascular diseases, and cancer. Previous research by the same investigators had shown that diesel particles cause mitochondrial dysfunction in liver tissue cells, but the researchers wanted to study the effects in mice. This is the first study to demonstrate the ability of DE exposure to induce mitochondrial dysfunction in vivo.
While there is emerging evidence of a connection between air pollution exposure and metabolic diseases, the exact mechanisms and genes involved are unknown. The researchers say these findings may indicate some of the factors that cause humans to get fatty liver disease and type 2 diabetes after being exposed to DE. 

Gajalakshmi Ramanathan et al, Integrated hepatic transcriptomics and metabolomics identify Pck1 as a key factor in the broad dysregulation induced by vehicle pollutants, Particle and Fibre Toxicology (2024). DOI: 10.1186/s12989-024-00605-6

Comment by Dr. Krishna Kumari Challa on March 5, 2025 at 10:03am

Many of the low-latitude regions most threatened by warming are already vulnerable in numerous ways. They face problems with food sufficiency, and economic and systemic forces make them less resilient than northern countries.
But still there are ways that these regions could, at least partly, meet the challenge.
In many low latitude areas, especially in Africa, the yields are small compared to similar areas elsewhere in the world. They could get higher yields with access to fertilizers and irrigation as well as reducing food losses through the production and storage chain. However, ongoing global warming will add a lot of uncertainty to these estimates and probably even more actions are needed, such as crop selection and novel breeding, the scientists say.
While policy-makers in low-latitude countries should work to close those gaps, in mid- and high-latitude regions farmers and policy-makers need more flexibility.
Warming will likely change which crops are grown in those areas, and further changes will come from the array of pressures on the global food system. Coping with those changes will require the ability to adjust and adapt as the consequences of climate change unfold.

Climate change threatens crop diversity at low latitudes, Nature Food (2025). DOI: 10.1038/s43016-025-01135-wwww.nature.com/articles/s43016-025-01135-w

Part 2

 

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