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Cacti are thriving in snowless Alps as climate change ramps up

In the canton of Valais, cacti belonging to the genus Opuntia, better known as prickly pears, are popping up where they're not wanted. Usually found in hot and dry climates, the invaders made their way over from the Americas, where they are native, 250 years ago.

climate biodiversity impacts

Even the cactus may not be safe from climate change

The hardy cactus - fond of heat and aridity, adapted to rough soils - might not seem like the picture of a climate change victim. Yet even these prickly survivors may be reaching their limits.

climate impacts saguaros

Southwest wildfires endanger saguaros

Fires accelerated by climate change, along with invasive plants and urban sprawl, threaten the saguaros, a keystone species of the Sonoran Desert and a celebrated symbol of the Southwest.
Prickly cactus species 'under threat'

Prickly cactus species 'under threat'

The iconic cactus plant is veering into trouble say researchers.