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The Carbon Debate

How much carbon can we still emit while keeping the rise in temperature below 1.5°C?

Recent news

Global warming increases rainfall most over oceans

Global warming leads to more rain – but little of the change occurs over land. An international team of researchers, led by Bjørn H. Samset at the Norwegian CICERO Center for Climate Research, used ten global climate models to study how precipitation changes when just one factor in the climate system was allowed to change at a time.

The carbon debate

How much carbon can we still emit while keeping the rise in temperature below 1.5°C?

Have improvements in carbon intensity stopped?

COMMENTARY: The carbon intensity is a useful indicator, but also fraught with difficulties. Depending on the data choices, the policy implications could be quite different.

Doing by Suing

Oil nations, those who allow major polluters to pollute and profit from the pollution, are increasingly finding themselves at the receiving end of lawsuits. The ongoing court case in Oslo is the latest example.

Global CO2 emissions likely to rise in 2017

Global carbon dioxide emissions were almost flat for three years (2014-2016) bringing much needed optimism, but emissions are expected to increase in 2017.

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Recent publications

Rapid Adjustments Cause Weak Surface Temperature Response to Increased Black Carbon Concentrations

Camilla Weum Stjern, Bjørn Hallvard Samset, Gunnar Myhre, Piers M. Forster, Øivind Hodnebrog, Timothy Andrews, Olivier Boucher, Gregory S. Faluvegi, Trond Iversen, Matthew Kasoar, Viatcheslav V. Kharin, Alf Kirkevåg, Jean-Francois Lamarque, Dirk Jan Leo Oliviè, Thomas Benjamin Richardson, Dilshad Shawki, Drew Shindell, Christopher J. Smith, Toshihiko Takemura, Apostolos Voulgarakis

Introduction: Air Pollution in China

Kristin Aunan, Shuxiao Wang, Mette Halskov Hansen

The effectiveness of climate clubs under Donald Trump

Detlef Sprinz, Håkon Sælen, Arild Underdal, Jon Hovi

Quasi-Additivity of the Radiative Effects of Marine Cloud Brightening and Stratospheric Sulfate Aerosol Injection

Olivier Boucher, Christoph Kleinschmitt, Gunnar Myhre

Investigation of global particulate nitrate from the AeroCom phase III experiment

Huisheng Bian, Mian Chin, Didier A. Hauglustaine, M Schulz, Gunnar Myhre, Susanne E. Bauer, Marianne Tronstad Lund, Vlassis A. Karydis, Tom L. Kucsera, Xiaohua Pan, Andrea Pozzer, Ragnhild Bieltvedt Skeie, Stephen D. Steenrod, Kengo Sudo, Kostas Tsigaridis, Alexandra P. Tsimpidi, Svetlana G. Tsyro