Tag Archives: intergovernmental panel on climate change

Climate sensitivity study suggests narrower range of potential outcomes

power plants
New calculation of greenhouse gases’ effect on temperature reduces range of possible outcomes by more than half, researchers say.
Photograph: Ryan Tong/EPA

Findings should not be seen as taking pressure off need to tackle climate change, authors warn

January 18, 2018 — Earth’s surface will almost certainly not warm up four or five degrees Celsius by 2100, according to a study which, if correct, voids worst-case UN climate change predictions. Continue reading Climate sensitivity study suggests narrower range of potential outcomes

New study ‘reduces uncertainty’ for climate sensitivity

view on the sun over inversion from jested
View on the sun over inversion from Jested, Jested-Kozakov ridge, Czech Republic. Credit: Nataliya Hora / Alamy Stock Photo

Scientists have presented a new, narrower estimate of the “climate sensitivity” – a measure of how much the climate could warm in response to the release of greenhouse gases

January 17, 2018 — The latest assessment report from the Intergovernmental Panel on Climate Change (IPCC) estimates that climate sensitivity is close to 3°C, with a “likely” range of 1.5 to 4.5°C. Continue reading New study ‘reduces uncertainty’ for climate sensitivity

COP23: Key outcomes agreed at the UN climate talks in Bonn

representatives from fiji perform a traditional ceremony
Representatives from Fiji perform a traditional ceremony, known as the Qaloqalovi, to open the meeting, 06/11/17. Photo by IISD/ENB | Kiara Worth.

Climate change was again placed at the centre of global diplomacy over the past two weeks as diplomats and ministers gathered in Bonn, Germany, for the latest annual round of United Nations climate talks

November 19, 2017 — COP23, the second “conference of the parties” since the Paris Agreement was struck in 2015, promised to be a somewhat technical affair as countries continued to negotiate the finer details of how the agreement will work from 2020 onwards. Continue reading COP23: Key outcomes agreed at the UN climate talks in Bonn

‘Tobacco at a cancer summit’: Trump coal push savaged at climate conference

white house officials and business leaders appear at the event, titled the role of cleaner and more efficient fossil fuels and nuclear power in climate mitigation
White House officials and business leaders appear at the event, titled The Role of Cleaner and More Efficient Fossil Fuels and Nuclear Power in Climate Mitigation. Photograph: Ronald Wittek/EPA

The US administration’s attempt to portray fossil fuels as vital to reducing poverty and saving US jobs is ridiculed in Bonn

November 13, 2017 — The Trump team was heckled and interrupted by a protest song at the UN’s climate change summit in Bonn on Monday after using its only official appearance to say fossil Continue reading ‘Tobacco at a cancer summit’: Trump coal push savaged at climate conference

From Miami to Shanghai: 3C of warming will leave world cities below sea level

how shanghai would look with a rise of just 2c
How Shanghai would look with a rise of just 2C: the UN warned this week of a potential 3C scenario. Photograph: Nickolay Lamm/Courtesy Climate Central

An elevated level of climate change would lock in irreversible sea-level rises affecting hundreds of millions of people, Guardian data analysis shows

November 3, 2017 — Hundreds of millions of urban dwellers around the world face their cities being inundated by rising seawaters if latest UN warnings that the world is on course for 3°C of global warming come true, according to a Guardian data analysis. Continue reading From Miami to Shanghai: 3C of warming will leave world cities below sea level

IPCC Chair Discusses Limiting Global Warming to 1.5°C

plumes of smoke rise from chimneys at an industrial area in greece
Plumes of smoke rise from chimneys at an industrial area in Greece. IPCC is working on a series of reports, including one on assessing ways to limit global warming to 1.5°C above preindustrial levels. Credit: Alexandros Maragos/Moment/Getty Images

Several forthcoming reports by the Intergovernmental Panel on Climate Change examine what needs to be done to take control of our climate future

November 1, 2017 — With a United Nations climate change conference scheduled for Bonn, Germany, from 6 to 17 November, two high-level reports released this week warn about the increasing risk of climate change. In addition, the Intergovernmental Panel on Climate Change (IPCC) is working on a separate report, to be issued in 2018, about the effects of global warming at 1.5°C above preindustrial levels. Continue reading IPCC Chair Discusses Limiting Global Warming to 1.5°C

Sea levels to rise 1.3m unless coal power ends by 2050, report says

the extra contribution to sea level rise from antarctica will not kick in if warming is kept at less than 1.9c above preindustrial levels
The extra contribution to sea level rise from Antarctica will not kick in if warming is kept at less than 1.9C above preindustrial levels, the researchers found. Photograph: IceBridge/Nasa

University of Melbourne paper combines latest understanding on Antarctica and current emissions projection scenarios

October 27, 2017 — Coastal cities around the world could be devastated by 1.3m of sea level rise this century unless coal-generated electricity is virtually eliminated by 2050, according to a Continue reading Sea levels to rise 1.3m unless coal power ends by 2050, report says

Analysis: How well have climate models projected global warming

southern borneo
Afternoon sunlight casts long shadows from thunderhead anvils down onto southern Borneo Credit: NASA Archive / Alamy Stock Photo

Scientists have been making projections of future global warming using climate models of increasing complexity for the past four decades

October 5, 2017 — These models, driven by atmospheric physics and biogeochemistry, play an important role in our understanding of the Earth’s climate and how it will likely change in the future. Continue reading Analysis: How well have climate models projected global warming

Planet-warming methane from livestock underestimated – study

methane from livestock
Image by Rappler.com

Revised calculations of methane produced per head of cattle show that global livestock emissions in 2011 are 11% higher than estimates based on data from the UN’s Intergovernmental Panel for Climate Change

PARIS, France (Oct. 1, 2017) — Emissions of the greenhouse gas methane from livestock are larger than previously thought, posing an additional challenge in the fight to curb global warming, scientists said Friday, September 29. Continue reading Planet-warming methane from livestock underestimated – study

Ambitious 1.5C Paris climate target is still possible, new analysis shows

paris agreement on climate change
New research suggests the aspirational 1.5°C goal is more hopeful than thought. Photograph: Francois Mori/AP

Goal to limit warming to 1.5°C to avoid the worst impacts of climate change was seen as unreachable, but updated research suggests it could be met if strong action is taken

September 18, 2017 — The highly ambitious aim of limiting global warming to less than 1.5°C remains in reach, a new scientific analysis shows. Continue reading Ambitious 1.5C Paris climate target is still possible, new analysis shows