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As spring and summer temperatures return to the Northern Hemisphere, winter’s snow is melting, releasing precious fresh water into Earth’s streams, rivers and oceans.

Humans account for up to 80 per cent of Alberta’s wildfires in May, but that’s likely to change this year as public health measures keep people at home.

Multiple climate factors indicate above-normal activity is most likely.

Some bleaching corals undergo an, until now, mysterious transformation – emitting a range of different bright neon colours.

Researchers have developed a deep-learning model that maps fuel moisture levels in fine detail across 12 western states, opening a door for better fire predictions.