Climate Sensitivity

Climate Sensitivity

One thing scientists are still working to figure out is exactly how much warming each ton of CO2 causes. This is called the climate’s “sensitivity” to CO2.

Long-term look climate change Climate Nexus

Long-term Look at Climate Change

It has fallen upon climate scientists to develop the technical sophistication and to employ the research methods necessary to understand climate variables, how they change across time and space, and the degree of human-caused climate disruption.

Dr. Mike Mann on Climate Models

Dr. Mike Mann on Climate Models

Noted climate scientist Michael Mann discusses the scary reality that human greenhouse gas emissions are currently overcoming natural forcings, as well as the current confusion around surface warming, climate models, and natural variability.

Working Group III

Working Group III

Working Group III (WGIII) covers pathways and scenarios for mitigating climate change. This overview pulls out notable findings from the WGIII Summary for Policymakers (SPM).

Working Group II

Working Group II

Working Group II (WGII) covers the impacts and vulnerabilities caused by climate change and discusses pathways for adaptation.

IPCC Working Group I

Working Group I

AR5 reflects advances in science that point to increased levels of certainty on issues already raised and provides greater detail on measurements and projections.

Snow in Sochi

Snow in Sochi

Above-average temperatures in Sochi are causing delays, injuries, and more at Olympic skiing and snowboarding events.

Polar Vortex

Polar Vortex

Right now, the eastern United States is seeing a cold snap, which could cause some to wonder whether the world is still warming