Produced by 91 authors at the request of the group of governments which signed on to the 2015 Paris Agreement, it outlines the impact of global warming of 1.5 degrees Celsuis above pre-industrial levels, and puts forward suggestions to contain global warming below that. "This dynamic differs in countries such as China and South Korea, where monopolistic conditions in the electric system allow for reducing investment risks, deploying series effects and enhancing the engineering capacities of users due to stable relations between the security authorities and builders", it says. Scientists said "rapid, far-reaching and unprecedented changes in all aspects of society" are required to limit the possibility of irreversible environmental damage. Given accumulated emissions, the report says, "Global warming is likely to reach 1.5°C between 2030 and 2052".
The US delegation - the first since Donald Trump took office to work on an IPCC report - did not throw a monkey wrench into the process, as many here had feared.
Matthew Spencer, Oxfam's director of campaigns and policy said: 'Climate change has set our planet on fire, millions of people are already feeling the impacts, and the IPCC is clear that things could get much worse without immediate action. 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.
If that happened large parts of the world could become uninhabitable. Experts say meeting that target is critical not only for the environment, but also to safeguard poor and vulnerable communities on the frontline of the climate threat.
Among them would be a 40 to 50 percent reduction in emissions by 2030-a mere 12 years from now-and a completely carbon-neutral world by 2050.
"We welcome the conclusions of this historic report, one that should give the worldwide community not just a wake-up call, but also hope that we can avoid the most devastating impacts of climate change", said Bill Hare, Climate Analytics CEO.
The IPCC report incorporates recent research suggesting that the amount of carbon that humanity can emit while limiting warming to 1.5 °C might be larger than previously thought. Per the IPCC - a collection of top climate scientists - the planet has about 12 years left to massively cut carbon emissions to ensure temperatures rise only 1.5 degrees Celsius (2.7 degrees Fahrenheit) by 2100.
If greenhouse gas emissions are not cut drastically and rapidly, between 2030-52, Earth's global average temperatures could rise by 1.5 degree above pre-industrial era levels, leading to widespread climate change impacts.
U.N. World Meteorological Organization (WMO) secretary-general Petteri Taalas told reporters in Geneva: "There is clearly need for a much higher ambition level to reach even a 2 degrees target, we are moving more towards 3 to 5 (degrees) at the moment".
She said governments need to be stronger.
In addition to the carbon tax, the federal government is moving on a number of fronts, both at home and internationally - phasing out coal-fired power; investing in public transit; requiring cleaner fuels; and financing clean technology development. There was no mention of oil in this context in the summary.
He warned the world was already seeing the beginning of "massive displacement and a shocking rise in hunger" - and unless temperatures stayed below 1.5C, island nations would disappear beneath rising seas.
Three years ago, as Secretary-General of the United Nations, I was proud to have helped secure the Paris Agreement on Climate Change. He fears that the IPCC report undersells the difficulty of achieving the 1.5 °C goal. All 193 United Nations member states signed up to this deal - a rare feat in worldwide diplomacy - which acknowledges the existential threat climate change poses to us all.
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