Articles sur Extreme weather

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Recent marine heatwaves have devastated crucial coastal habitats, including kelp forests, seagrass meadows and coral reefs. Dan Smale

Suffering in the heat: the rise in marine heatwaves is harming ocean species

Marine heatwaves, like their land counterparts, are growing hotter and longer. Sea species in southeastern Australia, southeast Asia, northwestern Africa, Europe and eastern Canada are most at risk.
A ‘stuck’ monsoonal system dumped a year’s worth of rainfall on Townsville in just a week. AAP Image/Dave Acree

How climate change can make catastrophic weather systems linger for longer

What do the recent Townsville floods and Tasmanian heatwave have in common? Both were caused by weather systems that stayed put for days or weeks on end. And global warming could worsen that trend.
The heat makes the drought even worse, because it makes the plants more thirsty so they have to drink more. Tim J Keegan/flickr

Curious Kids: why do we have a drought?

We can't make it rain. But you are already helping if you don't use more water than you need. And you can talk to your parents about the planet getting warmer, because the heat makes drought worse.
Shark Bay was hit by a brutal marine heatwave in 2011. W. Bulach/Wikimedia Commons

Shark Bay: A World Heritage Site at catastrophic risk

Everyone knows the Great Barrier Reef is in peril. But a continent away, Western Australia's Shark Bay is also threatened by marine heatwaves that could alter this World Heritage ecosystem forever.
Bundled up against the cold in downtown Chicago, Sunday, Jan. 27, 2019. AP Photo/Nam Y. Huh

How frigid polar vortex blasts are connected to global warming

Life-threatening cold temperatures in the central US are caused by changes in wind circulation in the Arctic that bring cold air south. Climate change could make these events more frequent.
Haiti had not yet recovered from its devastating 2010 earthquake when it was hit hard by Hurricane Matthew in 2016. It is one of the world’s most vulnerable nations to climate change. AP Photo/Rebecca Blackwell

In Haiti, climate aid comes with strings attached

Haiti is extremely vulnerable to climate change. It is also very poor. International donors have stepped in to help the country fund climate mitigation, but is the money going where it's most needed?
A farmer shows smaller-than-usual soybeans harvested due to drought conditions in Tallapoosa, Georgia. AP Photo/David Goldman

Reclaiming lost calories: Tweaking photosynthesis boosts crop yields

Many of the crop plants that feed us waste 20 percent of their energy, especially in hot weather. Plant geneticists prove that capturing this energy could boost crop yields by up to 40 percent.
Storm clouds move over the Illawarra south of Sydney on Wednesday, November 28 2018. Sydney received more than a month’s worth of rain in just two hours, with Observatory Hill recording 84.6mm by 7am. The November average is 83.8mm. Dean Lewins/AAP

Sydney storms could be making the Queensland fires worse

Bushfires across Queensland are fanned by high winds pushed north by a strong low in NSW.

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