"Even at a little over 1.0°C warming, India is being battered by the worst climate extremes - it is clear that the situation at 1.5°C is going to worsen".
The IPCC report said at the current rate of warming, the world's temperatures would likely reach 1.5C between 2030 and 2052 after an increase of 1C above pre-industrial levels since the mid-1800s.
The world's biggest review report on climate change, released by the Intergovernmental Panel on Climate Change (IPCC), has warned that India could face an annual threat of deadly heatwaves, similar to the one in 2015 that had left around 2,500 people dead, if the world gets warmer by 2 degree Celsius over pre-industrial levels, reported Times of India.
Two decades. That's all the time world leaders have to reverse emissions of greenhouse gases to avoid inundating coastal cities, killing off coral reefs and their attendant marine wildlife, and potential food shortages, according to a new United Nations report by the Intergovernmental Panel on Climate Change.
This latest report - backed by the United Nations - says the scale of the challenge is vast and will be expensive to carry out.
While it is not said that it is impossible to limit global warming to 1.5℃, however, scientists have said that attaining it would be a very hard task.
The dramatic report warned that the planet is now heading to warm by 3C. In order to limit the increase to 1.5°C, the models predict that a 45 percent decline in Carbon dioxide emissions is necessary from 2010 levels by 2030.
How can all that be done? The report says "rapid, far-reaching and unprecedented changes in all aspects of society" are needed to stem catastrophic climate change, bringing risks of drought, wildfires, flooding, and food shortages.
It will require a huge ramp-up in renewables so they generate 70-85% of electricity supplies by 2050, while coal power's share of the mix tumbles to nearly nothing.More news: Eagles reportedly reach out to Bills about LeSean McCoy
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Why make all that effort for 0.5C?
Limiting the temperature rise to 1.5 °C could also protect several hundred million people, including those living in some of the least developed countries, from slipping into poverty and disadvantage by 2050 due to climate-related risks, as would be the case under the 2°C scenario. Moreover, coral reefs, already threatened, would decline by 70-90 percent with global warming of 1.5°C, whereas virtually all would be lost with 2°C, according to the report.
A New Climate Economy report released last month says benefits from moving towards a low carbon economy could be as high as $26 trillion through to 2030 when compared with business as usual.
How has this report been drawn up?
"In line with our evidence based approach to tackling climate change, we are committed to considering the report carefully, including seeking updated independent, expert advice from the UK Committee on Climate Change on its implications for our targets".
The report's authors and representatives of 195 governments which are members of the IPCC have then met to finalise the "summary for policymakers" report, which involves agreeing it line-by-line.
"There are some areas we are making progress quickly enough that they are compatible with 1.5C, the example of renewables is one, where we've seen costs falling and deployment across the world".
SKEA: Yeah. I mean, the - what we were asked to do by governments was to produce a report that answered two homework questions.
The UK already has a target to cut greenhouse gas emissions by 80% by 2050 and pressure has been building to set a zero-emissions target for mid-century. We also will need to rely on carbon removal-whether that's as low-tech as planting trees or using new technology like direct air capture that can suck CO2 from the atmosphere.