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Articles on Climate change

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As this reconstructed village shows, Vikings made it as far as Newfoundland during the Medieval warm period. Wikimedia/Dylan Kereluk

Climate explained: what was the Medieval warm period?

During the European Middle Ages, parts of the world experienced warming similar to that between 1960 to 1990. But the rising temperatures we’re observing now are global and exceed the past record.
Aerial view of Lake Powell on the Colorado River along the Arizona-Utah border. AP Photo/John Antczak

Interstate water wars are heating up along with the climate

The Supreme Court recently dealt defeat to Florida in its 20-year legal battle with Georgia over river water. Other interstate water contests loom, but there are no sure winners in these lawsuits.
A helicopter drops water on a forest fire in Alaska. Michael Risinger/U.S. Army National Guard

As extreme fires transform Alaska’s boreal forest, deciduous trees put a brake on carbon loss and how fast the forest burns

A new study finds more deciduous trees like aspen are growing in after severe fires in the region, and that has some unexpected impacts.
For more than 20 years, Canada has repeatedly missed its targets to reduce greenhouse gas emissions. It is the only G7 country whose emissions have increased since 2010. (Shutterstock)

Bill C-12: Canada must embrace best practices if it want to reach its greenhouse gas targets

Bill C-12 is a step in the right direction, but its not enough to meet Canada’s goal for a decarbonized economy.
The United Nation Environment Program is leading the Global Peatlands Initiative to save peatlands and help keep climate change in check. (Bin Xu)

How scientists are restoring boreal peatlands to help keep carbon in the ground

Peatlands store more soil carbon than any other terrestrial ecosystem, including tropical forests. But they have been heavily exploited and damaged. Now, scientists are working to restore them.

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