The sky is getting crowded. In the last few years, the number of satellite launches has increased by an order of magnitude as mega-constellations of internet-powering hardware crowd into low Earth ...

Earth system models (ESMs) integrate the interactions of atmosphere, ocean, land, ice, and biosphere to estimate the state of regional and global climate under a wide variety of conditions. A model ...

After yet another international climate summit ended last fall without binding commitments to phase out fossil fuels, a ...

The Amazon rainforest is so big that it makes its own climate. As they photosynthesise and transpire, its billions of trees collectively produce enough moisture to form clouds. These, by some ...

New research has found that the world has reached the first of many Earth system tipping points. These will cause catastrophic harm unless humanity takes urgent action. A tipping point is a moment in ...

One of the most pressing questions facing climate scientists, and the world at large, is whether human-caused global warming could trigger changes in the climate system that will radically reshape the ...

The world is on course to trigger several climate "tipping points" if global government policies stay on their current course, according to a new study April 23. These points of no return are specific ...

When it comes to climate change, to invoke one of Al Gore’s favorite sayings, the biggest challenge is not what we don’t know, but what we know for sure but just isn’t so. Two new studies show that ...

Broecker, W. S. 1997. “Thermohaline Circulation, the Achilles Heel of Our Climate System: Will Man-Made CO2 Upset the Current Balance?” November 28. Science. 278 ...

Global scientists warn that humanity is on the verge of crossing irreversible climate thresholds, with coral reefs already at their tipping point and polar ice sheets possibly beyond recovery. The ...

Coccolithophores, tiny planktonic architects of Earth’s climate, capture carbon, produce oxygen, and leave behind geological records that chronicle our planet’s history. European scientists are ...