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Consequences of global warming

Q: What will happen to world due to global warming?

Krishna: Disaster!

Okay, I don’t want to become an alarmist. But let me explain in detail using scientific facts (11).

Global Warming and human waste ,Pollution Concept - Sustainability. showing the effect of arid land with tree changing environment, Concept of climate change. Sky background, different weather

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Climate change affects the social and environmental determinants of health – clean air, safe drinking water, sufficient food and secure shelter. Between 2030 and 2050, climate change is expected to cause approximately 250 000 additional deaths per year, from malnutrition, malaria, diarrhoea and heat stress and other diseases and health conditions(1).

Vegetables getting bitter (2), flowers loosing scent (3) and these are undoubtedly climate change evidences. Climate even effects human behaviour according to recent studies (4).

The people and military of various countries around Arctic are moving more to north ... as the Arctic ice opens up, the world turns its attention to the resources below. 30 percent of the world's undiscovered natural gas and 13 percent of its undiscovered oil are under this region. As a result, military action in the Arctic is heating up, with the United States, Russia, Denmark, Finland, Norway, Iceland, Sweden and Canada holding talks about regional security and border issues. Several nations, including the U.S., are also drilling troops in the far north, preparing for increased border patrol and disaster response efforts in a busier Arctic.

Breeding season alterations among animals ...

As temperatures shift, penguins are shifting their breeding seasons, too. A March 2012 study found that gentoo penguins are adapting more quickly to warmer weather, because they aren't as dependent on sea ice for breeding as other species.

It's not just penguins that seem to be responding to climate change. Animal shelters in the U.S. have reported increasing numbers of stray cats and kittens attributed to a longer breeding season for the felines.

5. High-country changes ...

Decreased winter snowfall on mountaintops is allowing elk in northern Arizona to forage at higher elevations all winter, contributing to a decline in seasonal plants. Elk have ravaged trees such as maples and aspens, which in turn has led to a decline in songbirds that rely on these trees for habitat.

6. Spring has changed in the last century (3)...

Spring is emerging progressively earlier than previous times since 1960s. This has set in noticeable changes in plants. Compared to the late 1800s, the first flowering dates for 43 of the most common plant species in the area have moved forward an average of 10 days. Other plants have simply disappeared, including 15 species of orchids.

7. Changed high season at parks ...

Peak national park attendance has shifted forward more than four days, on average, since 1979. Today, the highest number of visitors now swarm the Grand Canyon on June 24, compared with July 4 in 1979.

8. Changing genetics...

Even fruit flies are feeling the heat. According to a 2006 study, fruit fly genetic patterns normally seen at hot latitudes are showing up more frequently at higher latitudes. According to the research, the gene patterns of Drosophila subobscura, a common fruit fly, are changing so that populations look about one degree closer in latitude to the equator than they actually are. In other words, genotypes are shifting so that a fly in the Northern Hemisphere has a genome that looks more like a fly 75 to 100 miles (120 to 161 kilometers) south.

9. As space increases because of ice-melting, polar bears are swimming long distances ...

Polar bear cubs are struggling to swim increasingly long distances in search of stable sea ice, according to a 2011 study. The rapid loss of sea ice in the Arctic is forcing bears to sometimes swim up to more than 12 days at a time, the research found. Cubs of adult bears that had to swim more than 30 miles (48 kilometers) had a 45 percent mortality rate, compared with 18 percent for cubs that had to swim shorter distances.

10. Mobility of more species ...

Species are straying from their native habitats at an unprecedented rate: 11 miles (17.6 km) toward the poles per decade. Areas where temperature is increasing the most show the most straying by native organisms. The Cetti's warbler, for example, has moved north over the last two decades by more than 90 miles (150 km).

When there is so much evidence - both direct and indirect - from almost all the areas of science to show that climate change has entered our homeland and is about to stay and impact us in numerous negative ways unless we make adjustments to our lifestyles drastically, how can anybody with reasonable reasoning deny it?

11. Altering interactions among Species (5)...

From plants and crustaceans to birds and mammals, species across the food chain in the world are shifting how they respond to seasonal changes, and British researchers say climate change is a major reason why.

Not all species were responding to environmental changes in the same way. The predatory species at the top of the food chain were changing the timing of their seasonal activities more slowly in response to warmer temperatures than other organisms. This suggests that species lower down on the food chain will change their behavior more as temperatures continue to rise.

Fish and insects modify seasonal habits more than plankton and birds, potentially pulling apart food webs and causing major damage to ecology, according to scientists.

12. Decreasing economic productivity around the world (6,7,8)...

In a sweeping new study published in Nature, a team of researchers say there is a strong relationship between a region’s average temperature and its economic productivity — adding another potential cost to a warming climate.

From construction workers in Dubai to farmers in India, workers around the world are suffering from excessive heat fueled by climate change. This heat is leading to huge productivity losses and mounting economic strain for dozens of countries, according to research published on 18th July, 2016, ahead of a U.N. forum. The study builds on research detailing how extreme heat in some places prevents employees from working during the hottest hours of the day. People simply tire faster and accomplish less the hotter it gets. That lost work time translates into significant hits on the gross domestic product in nations across the globe, and it is a problem that could deepen as the Earth continues to warm.

Kjellstrom and fellow researchers found that in dozens of countries, daylight work hours lost to excessive heat have increased since the 1990s. They also estimate that at the current rate of global warming, that trend will continue. For instance, countries such as India, Vietnam and Indonesia could see the number of lost work hours more than double by 2055 and more than triple by 2085. By the mid-1990s, persistently hot, poor countries such as Bangladesh were estimated to have lost 1 to 3 percent of all daylight work hours to extreme heat, which can cause exhaustion, stroke and sometimes death among exposed workers. In West Africa, research found that the number of very hot days per year had doubled since 1960. Serious heat waves have become more prevalent in various parts of the globe. Those figures could only be getting worse over time.

The effects of heat stress aren’t felt only at the country level, but also at the human level.

Not only does extreme heat put the health of individual workers in danger, but it also hurts workers and their families financially.

13. The disastrous consequences of climate change threaten the availability of our food. At the same time, food production itself is a major cause of the crisis. Farmers worldwide are experiencing this firsthand. Climate change causes rising temperatures, heavy rainfall, severe storms, and extended periods of drought.

Many crops fail due to these extreme weather conditions. This has consequences not only for the farmers themselves, but also for the food they produce, and thus for global food security (9,).

These are just a few consequences of global warming. There are several others too.

If I mention all those you will get a more scary picture. And that is why

Scientists Set Doomsday Clock to 100 Seconds to Midnight (originally, it was conceived to measure nuclear threats, but in 2007 the Bulletin of Atomic scientists made the decision to include climate change in its calculations) (10).

That means we are very close to a disaster because of climate change. Climate change, if unchecked, is an urgent threat to health, food supplies, biodiversity, and livelihoods across the globe. It magnifies every hazard and tension of our existence. The warnings about global warming have been extremely clear for a long time. We are facing a global climate crisis. It is deepening. We have entered a period of consequences now.

Climate change isn't something people get to choose to believe or not: it's happening. Most reputable scientists agree that climate change is real and that the effects are likely to be very bad.

The Doomsday Clock now shows that along with nuclear war , climate change pose imminent threat to the world.

Wake up world. We have no time left. So act fast and firm: Scientists around the world

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