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Articles on Drought

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Higher temperatures cause drought, and can lead to food insecurity. Guido Dingemans, De Eindredactie/GettyImages

Extreme heat hurts human health. Its effects must be mitigated – urgently

Many of the temperatures presently being recorded in Africa, and those projected in the next decade, are already close to the limits of human survival, or “liveability”.
A firefighter checks homes after a mudslide that killed 23 people in Montecito, Calif., in 2018. Wally Skalij/Los Angeles Times via Getty Images

Evacuations ordered as a powerful storm heads for California’s wildfire burn scars, raising risk of mudslides – this is what cascading climate disasters look like

Studies show climate change is raising the risk of cascading hazards that alone might not be extreme but add up to human disasters. Communities and government agencies aren’t prepared.
Flooding is seen in the Manayunk section of Philadelphia after the remnants of Hurricane Ida, Sept. 2, 2021. AP Photo/Matt Rourke

Cities worldwide aren’t adapting to climate change quickly enough

More than half of the world’s population lives in cities, and that share is growing. Rapid climate change could make many cities unlivable in the coming decades without major investments to adapt.
Some of North America’s groundwater is so old, it fell as rain before humans arrived here thousands of years ago. Maria Fuchs via Getty Images

Ancient groundwater: Why the water you’re drinking may be thousands of years old

As surface water diminishes in the Western US, people are drilling deeper wells – and tapping into older groundwater that can take thousands of years to replenish naturally.
Lightning during a monsoon storm in southern Arizona, Saguaro National Park. Pete Gregoire, NOAA

Monsoons make deserts bloom in the US Southwest, but climate change is making these summer rainfalls more extreme and erratic

Monsoons are weather patterns that bring thunderstorms and heavy rains to hot, dry areas when warm, moist ocean air moves inland. They’re challenging to forecast, especially in a changing climate.
In some drought-stricken parts of the Southwest, water arrives by truck. Spencer Platt/Getty Images

Avoiding water bankruptcy in the drought-troubled Southwest: What the US and Iran can learn from each other

Cities and farmers in the Southwest are resorting to unsustainable strategies to pull in more water. Iran has tried many of these strategies and shows how they can go wrong.
The latest climate change assessment by scientists is a ‘code red for humanity’, according to the UN. Toa55/Shutterstock

Have climate change predictions matched reality? Podcast

How scientists are improving their understanding of the connection between extremes and climate change – and what’s to come. Listen to The Conversation Weekly.
One year following the 2019/20 fires, this forest has been slow to recover. Rachael Nolan

Climate change is testing the resilience of native plants to fire, from ash forests to gymea lilies

Many plants are really good at withstanding bushfires, but the combination of drought, heatwaves and pest insects under climate change may push them to the brink.

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