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techkenyot.com December 10, 2018


Major UN report says climate change is worse than first thought

10 October 2018, 02:43 | Edward Lowe

Major UN report says climate change is worse than first thought

Major UN report says climate change is worse than first thought

The much-anticipated "1.5 Health Report" was released on Monday in South Korea by the Intergovernmental Panel on Climate Change (IPCC), a United Nations body set up in 1988, and written by 91 authors from 40 different countries. Even with the promises countries have made as part of the Paris Agreement to cut the greenhouse gas emissions that cause global warming, the world is set to breach the 1.5C threshold by around 2040. "Solving the climate crisis requires vision and leadership", he continued. More than 1,000 scientists reviewed the findings.

This again puts Trump at odds with the rest of the world when it comes to climate change, with the United States the world's only country to disavow the Paris climate agreement, which committed governments to attempt to stay within the 1.5C limit.

While warming of 2C above pre-industrial levels has widely been thought of as the threshold beyond which unsafe climate change will occur, vulnerable countries such as low-lying island states warn rises above 1.5C will threaten their survival.

"E$3 ven with erroneous attribution of extreme weather/climate events and projections using climate models that are running too hot and not fit for goal of projecting 21st century climate change, the IPCC still has not made a strong case for this massive investment to prevent 1.5C warming", she said on her Climate Etc. blog.

The report highlights a number of climate impacts that could be avoided by limiting global warming to 1.5 °C compared to 2 °C, or more. (Here's a handy graphic to explain the differences between 1.5 and 2 degrees Celsius of warming.) The IPCC's report drew information from more than 6,000 scientific studies and 132 authors. The Arctic, for example, is likely to be several degrees warmer, increasing ice melt and sea level rise.

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At 1.5 degrees, the report finds that 70 to 90 percent of tropical coral reefs will vanish.

Approved by the IPCC in South Korea on Saturday ahead of COP24 in Poland in December, Global Warming of 1.5°C was produced by 91 authors and reviewers from 40 countries.

Australia, and other countries around the world, already have their plans for how they plan to address global warming so it's not like Professor Howden and his IPCC colleagues are trying to tell them what to do.

The report says the world needs to reach zero net emissions of carbon dioxide by 2050 to prevent a further rise in temperature. "The latter would be used as part of a now nonexistent program to get power from trees or plants and then bury the resulting carbon dioxide emissions in the ground, leading to a net subtraction of the gas from the air - bioenergy with carbon capture and storage, or BECCS".

Allowing the global temperature to temporarily exceed or "overshoot" 1.5 °C would mean a greater reliance on techniques that remove Carbon dioxide from the air to return global temperature to below 1.5 °C by 2100. But the report warns that "the effectiveness of such techniques are unproven at large scale and some may carry significant risks for sustainable development".

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"And now more than ever we know that every bit of warming matters", Krug said. Add Climate Change as an interest to stay up to date on the latest Climate Change news, video, and analysis from ABC News.

"This report is not a wake-up call, it is a ticking time bomb", said Gro Harlem Brundtland, Acting Chair of The Elders in a statement.

"We want a just transition to a clean energy system that benefits people not corporations", Nansen emphasized.

Limiting global warming to 1.5 instead of 2 degrees Celsius by 2100, as called for under the Paris climate agreement, would curtail global sea level rise, reduction of Arctic sea ice, and the decline of coral reefs, according to the report.

Delaying action on climate change "is something that is explicitly contradicted in the report", he told the Thomson Reuters Foundation.

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Although he didn't specify which reports he was referring to, he has often cited research by the conservative-leaning Heritage Foundation when trying to make the case that cutting carbon emissions would have little effect on global temperatures. Next year the IPCC will release the Special Report on the Ocean and Cryosphere in a Changing Climate, and Climate Change and Land, which looks at how climate change affects land use. "Although the report might appear miserable at first glance, it actually shows the pathways to limit warming to 1.5 degrees and how it is achievable".



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