Green water supplies and global limits

Access to dwindling freshwater supplies is one of the defining issues of our time as global populations expand amidst a changing climate. Water access and limitations and related issues are rightly considered a possible flashpoint ...

High CO2 levels can destabilize marine layer clouds

At high enough atmospheric carbon dioxide (CO2) concentrations, Earth could reach a tipping point where marine stratus clouds become unstable and disappear, triggering a spike in global warming, according to a new modeling ...

Many Arctic lakes give off less carbon than expected

The Arctic is warming twice as fast as the rest of the planet. One consequence of that trend is the thawing of permafrost, a layer of earth that has remained frozen for thousands of years in some areas. This frozen soil and ...

Sand from glacial melt could be Greenland's economic salvation

As climate change melts Greenland's glaciers and deposits more river sediment on its shores, an international group of researchers has identified one unforeseen economic opportunity for the Arctic nation: exporting excess ...

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