But the report, published today, starkly illustrates that letting temperature rises climb more than 1.5°C will lead to sea-level rises, more frequent heavy rainstorms and heatwaves, greater drought, widespread disease and more economic losses.
The summary also said that renewable energy would need to supply 70% to 85% of electricity by 2050 as compared to just 25% now to stay within the 1.5℃ mark.
Limiting warming to 1.5°C is possible within the laws of chemistry and physics but doing so would require unprecedented changes, Co-Chair of IPCC Working Group III Jim Skea said.
"I hope that governments and the public read this important document and begin the deep and concerted action required to avoid the serious impacts of reaching and exceeding global warming of 2.0 °C".
Envoys at the 2015 Paris talks asked the IPCC to study what it would take to limit warming to 1.5 degrees, a more ambitious goal than the previous 2-degree target.
Tweeting shortly after the report was launched UN Secretary-General António Guterres said that it is not impossible to limit global warming to 1.5°C, according to the report.
Researchers found that "human caused" C02 emissions need to be cut by almost half of 2010 levels by the 2030 to starve off the worts effects of climate change.
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United Nations climate report calls for immediate action to curb global warming
Another aspect would be the phase-out of coal and a reduction in the amount of natural gas used for power generation. The report calls for huge changes in land, energy, industry, buildings, transportation and cities.
These carbon dioxide scrubbing techniques would be particularly vital if the global temperature were to briefly peak above 1.5°C before being wrestled back down below the target by the end of the century. When figures came out in the past few years noting that more than 500 million plastic straws were being used daily in the USA and they were polluting the ocean, local government after local government quickly moved to ban plastic straws.
Reports from the IPCC, an global body that assesses climate change established by the United Nations Environment Programme and the World Meteorological Organization, carry a lot of weight. The report was prepared under the scientific leadership of all three IPCC working groups.
The UN Intergovernmental Panel on Climate Change (IPCC) on Monday reported that the planet may reach the crucial threshold of 1.5°C above pre-industrial levels as early as 2030, precipitating the risk of extreme drought, wildfires, floods and food shortages for hundreds of millions of people. The livestock sector is estimated to account for 14.5% of greenhouse gas emissions globally, more than direct emissions from the transport sector.
If 1.5 degrees of warming does occur, Southeast Asian countries like Indonesia, the Philippines, and Vietnam, including countries like Japan, China, Egypt, and the US will experience increased flooding by 2040.
Global Warming of 1.5 °C is the first in a series of Special Reports to be produced in the IPCC's Sixth Assessment Cycle.
"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 consequences of a 2 degrees rise in global warming will be devastating scientists have warned.
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