Climate models that give a low warming from increases in greenhouse gases do not match satellite measurements. Future warming will likely be worse than thought unless society acts, according to a new ...

Climate sensitivity—a measure of the global temperature response to radiative forcing—is fundamental to projections of future warming. Equilibrium climate sensitivity (ECS) quantifies the eventual ...

Climate models exhibit substantial inter-model spread in climate sensitivity, typically attributed to uncertainty in cloud feedbacks. In contrast, the influence of clear-sky shortwave absorption (SWA) ...

Earth’s climate may be more sensitive to pollution from greenhouse gas emissions than we had hoped, which could mean limiting the rise in global temperature to less than 2°C will be more difficult.

High-sensitivity climate models should not be excluded when projecting future regional climate impacts because the level of warming measured globally is not always the only good indicator of regional ...

What will our climate look like in the future? It is hard to overstate not only the importance of answering this question, but also the challenges involved in doing so. We know the climate is changing ...