UN Says 'Unprecedented Changes' Needed to Combat Global Warming in 12 Years

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We only have a dozen years for global warming to be kept to a maximum of 1.5C, beyond which the rise of even half a degree will significantly worsen the risks of extreme weather phenomena such as drought, floods, and extreme heat, as well as poverty for hundreds of millions of people, the report warns.

According to the authors of the study, limiting the rise in temperature to 1.5 °C, rather than 2°C is vital if humanity hopes to mitigate some of the most devastating effects of climate change.

"I just don't see the possibility of doing the one and a half" and even 2 degrees looks unlikely, said Appalachian State University environmental scientist Gregg Marland, who isn't part of the United Nations panel but has tracked global emissions for decades for the U.S. Energy Department. "Every bit of warming matters, especially since warming of 1.5C or higher increases the risk associated with long-lasting or irreversible changes such as the loss of some ecosystems", co-chair of the IPCC Working Group II Hans-Otto Portner said.

It was written by 91 authors from 40 countries and approved by the Intergovernmental Panel on Climate Change on Saturday.

The report sets out starkly that, without a rapid change of course, global temperatures will rise above the 1.5°C level that scientists view as the bare minimum to avert catastrophic climate change, including rising sea waters, desertification and droughts. Any additional emissions would require removing Carbon dioxide from the air.

Countries will need to bring down their greenhouse gas to about half of 2010 levels by 2030 and to net zero by about 2050.

The IPCC warns, however, there is a stark difference between 1.5 and even 2 degrees Celsius of warming. While he observed that numerous questions might have been better put to Nordhaus, he gave a formidable performance, demonstrating how the issues of climate change are not far from his main focus either.

"By refusing to endorse the findings of the IPCC's 1.5 degree celsius report, the USA has again given a clear signal that it would continue with its climate regressive agenda, which includes obstructing the work of the UNFCCC and promoting fossil fuels like coal and gas", said Chandra Bhushan, deputy DG of the CSE.

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The effectiveness of such techniques are unproven at large scale and some may carry significant risks for sustainable development, the report notes. "What we've done is said what the world needs to do". The world now pumps more than 40 billion tons of Carbon dioxide into the atmosphere each year; the IPCC calls for that number to be cut by more than 1 billion tons per year over the next decade.

But they asked the IPCC to complete a report on the feasibility to limiting hikes following a request from small island nations.

The global scientific authority on climate change, the IPCC, said the planet has 12 years with which to possibly achieve the 1.5-degree target, but it would require "transformational" change across all areas of society.

There's only twelve years left to avert climate change disaster, and Scott Morrison's still throwing around words like "nonsense".

The aim is to make the report as clear as possible while still scientifically robust - and to ensure that everybody is behind the document.

"The overarching context of this report is this: human influence has become a principal agent of change on the planet", adding that "the spread of fossil-fuel-based material consumption and changing lifestyles is a major driver of global resource use, and the main contributor to rising greenhouse gas (GHG) emissions".

A new assessment published by the UN's climate change panel yesterday had some striking words of warning to the global population, particularly when it comes to the limiting of global warming by a further 0.5°C than what had initially been mentioned back in December 2015.

An author of the recent report, who spoke on condition of anonymity, says the United States red-flagged several findings of the scientific summary for policymakers, but finally all nations endorsed it.

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