références en Anglais

.Contribution to (a) effective radiative forcing (ERF) and (b) global surface temperature change from component emissions for1750–2019based on Coupled Model Intercomparison Project Phase 6 (CMIP6) models and (c) net aerosol ERF for 1750–2014 from different lines of evidence.

A novel tool for flexible spatial and temporal analyses of much of the observed and projected climate change information underpinning the Working Group I contribution to the Sixth Assessment Report, including regional synthesis for Climatic Impact-Drivers (CIDs).

Since 1992, the IPCC has highlighted rising greenhouse gases, marking their ‘widespread and unprecedented’ impacts by 2014

Humanity received a “final warning” Monday from the UN Intergovernmental Panel on Climate Change. The bottom line of the Synthesis Report of the IPCC’s Sixth Assessment Report is to “act now, or it’s too late,” the Guardian wrote. The scale of the emergency screams out from almost every page — climate change is already displacing and killing millions of people globally — but the report also provides what UN Secretary-General António Guterres called a roadmap for defusing the “climate time bomb.”

IPCC report says only swift and drastic action can avert irrevocable damage to world

AR6 Synthesis Report

Summary for Policymakers

INTERLAKEN, Switzerland, March 20, 2023 -- There are multiple, feasible and effective options to reduce greenhouse gas emissions and adapt to human-caused climate change, and they are available now, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report released today. ...

The IPCC is currently in its Sixth Assessment cycle, during which the IPCC will produce the Assessment reports of its three Working Groups, three Special Reports, a refinement to the methodology report and the Synthesis Report. The Synthesis Report will be the last of the AR6 products, due for release in March 2023.

Corporations and politicians edited the Policy Summary to omit the scientists’ most powerful conclusions

A huge leak of documents seen by BBC News shows how countries are trying to change a crucial scientific report on how to tackle climate change. The leak reveals Saudi Arabia, Japan and Australia are among countries asking the UN to play down the need to move rapidly away from fossil fuels.

It took me a while but I finally digested the 107 pages of Chapter 5: Demand, services and social aspects of mitigation in the last IPCC report on Mitigation of climate change. This chapter is worth the read if only because it’s the first one fully dedicated to demand-side strategies. What I find remarkable is its conceptual width, including a few ideas that are usually considered too radical in these kind of venues. But just like the rest of the report, it is long and – as academic writing too often is – full of abstract jargon and somnolent prose. What I want to do in this article is to explain why Chapter 5 is more radical (in the good sense of the term) that you may think.

That same day, oil giant ExxonMobil made an announcement of its own: a $10 billion final investment decision for an oil and gas development project in the South American nation of Guyana that the company said would allow it to add a quarter of a million barrels of oil a day to its production in 2025.

The Intergovernmental Panel on Climate Change (IPCC), made up of the world’s leading climate scientists, has now published all three sections of its landmark comprehensive review of climate science.

Rapid decarbonization of energy is non-negotiable if we are to avert catastrophic global heating, says the latest UN climate report.

The Working Group III report provides an updated global assessment of climate change mitigation progress and pledges, and examines the sources of global emissions. It explains developments in emission reduction and mitigation efforts, assessing the impact of national climate pledges in relation to long-term emissions goals.

Environmentalists once saw abstraction as the biggest obstacle to climate action. How, they wondered, could one focus the public on the distant future? Today, we confront the opposite problem, with the very immediacy of the crisis generating a strange paralysis. When the Intergovernmental Panel on Climate Change warned that global heating made extreme flooding more common, its new report at the end of February spurred relatively little discussion – in part because of the water covering swathes of Queensland and New South Wales. As tinnies plucked desperate residents from the deluge, who could give due weight to the warning from Prof Brendan Mackey, one of the IPPC authors, that the science clearly projected “an increase of heavy rainfall events?”

February 28, 2022. Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report, released today.

The Working Group II contribution to the IPCC Sixth Assessment Report assesses the impacts of climate change, looking at ecosystems, biodiversity, and human communities at global and regional levels. It also reviews vulnerabilities and the capacities and limits of the natural world and human societies to adapt to climate change.

BERLIN, Feb 28 – Human-induced climate change is causing dangerous and widespread disruption in nature and affecting the lives of billions of people around the world, despite efforts to reduce the risks. People and ecosystems least able to cope are being hardest hit, said scientists in the latest Intergovernmental Panel on Climate Change (IPCC) report, released today.

On 28 February, the Intergovernmental Panel on Climate Change (IPCC), a United Nations body solely dedicated to looking at the science behind climate change, will release a major report on the impacts of the climate crisis and why it is imperative that we act now to address the growing risks. The report, which focuses on Impacts, Adaptation and Vulnerability, is expected to detail how climate impacts are already wreaking havoc in every part of the world and how, without much bolder action, more lives will be lost and more livelihoods destroyed. The report will look at challenges and solutions for addressing these risks and minimizing vulnerability unique to the world’s regions, cities and other habitats.

Approval of the Intergovernmental Panel on Climate Change (IPCC) Working Group II report on Impacts, Adaptation and Vulnerability in a virtual session (14-25 Feb). Press conference (virtual) at 10:00 a.m. CET (Berlin) on Monday, 28 February 2022 – 04.00 EDT (New York), 09:00 GMT (London), 12:00 EAT (Nairobi), 16:00 ICT (Bangkok) Information about media registration is available here. The deadline for registration is Friday, 18 February 2022.

In December 2020, 50 of the world’s leading biodiversity and climate experts, selected by a 12-person Scientific Steering Committee assembled by IPBES and IPCC, participated in a four-day virtual workshop to examine the synergies and trade-offs between biodiversity protection and climate change mitigation and adaptation.

In Paris, all governments solemnly promised to come to COP26 with more ambitious 2030 commitments to close the massive 2030 emissions gap that was already evident in 2015. Three years later the IPCC Special Report on 1.5°C reinforced the scientific imperative, and earlier this year it called a climate “code red.” Now, at the midpoint of Glasgow, it is clear there is a massive credibility, action and commitment gap that casts a long and dark shadow of doubt over the net zero goals put forward by more than 140 countries, covering 90% of global emissions.

A survey of the world’s top climate researchers shows a stark finding: Most expect catastrophic levels of heating and damage soon—very soon.

Last month, the United Nations Intergovernmental Panel on Climate Change issued its latest report, sounding a “code red for humanity.” The IPCC stressed the need for drastic emissions cuts immediately if we want to maintain a habitable planet and warned that we are running out of time to act to avoid climate catastrophe.

The Working Group I contribution to the Sixth Assessment Report addresses the most up-to-date physical understanding of the climate system and climate change, bringing together the latest advances in climate science, and combining multiple lines of evidence from paleoclimate, observations, process understanding, and global and regional climate simulations.

This Summary for Policymakers (SPM) presents key findings of the Working Group I (WGI) contribution to the IPCC’s Sixth Assessment Report (AR6)1 on the physical science basis of climate change. The report builds upon the 2013 Working Group I contribution to the IPCC’s Fifth Assessment Report (AR5) and the 2018–2019 IPCC Special Reports2 of the AR6 cycle and incorporates subsequent new evidence from climate science3.

The Summary for Policymakers (SPM) is the approved version from the 14th session of Working Group I and 54th Session of the Intergovernmental Panel on Climate Change and remains subject to final copy-editing and layout.

Australian scientists have challenged the latest UN-backed global warming report, saying it underestimated the likelihood major weather events driven by processes in the Pacific will become more extreme as the planet heats.