Several states are experimenting with weather modification to try to generate snow as water supplies shrink. An atmospheric scientist explains the history behind it – and the challenges.
Some places rarely see the sun.
Donat Photography / EyeEm
Clouds are central players in climate change, and ‘Path 99’ reveals them in a new light using data discarded by scientists.
Wildfires burn on the island of Evia, north of Athens, Greece, on Aug. 3, 2021, as the country dealt with the worst heat wave in decades. Temperatures reached 41 C in parts of Athens.
(AP Photo/Michael Pappas)
The latest report on climate science comes on the heels of heatwaves, wildfires, flooding and storms. It will help policy-makers act on plans to curb emissions or adapt to climate change.
If successful, solar geoengineering would would reduce the amount of sunlight that reaches the Earth’s surface and warms the planet.
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Solar geoengineering could theoretically cool the Earth to slow global warming, and it has been controversial. Still, countries should research its risks and benefits.
Is it time to take drastic steps to modify Earth’s climate to avoid catastrophic warming? A panel of experts says the idea deserves study.
Permafrost is thawing across the Arctic, releasing microbes and organic materials that have been trapped in the frozen ground for thousands of years.
NOAA via Wikimedia Commons
New research shows that permafrost contains huge amounts of particles that make it easier for cloud moisture to freeze. Thawing permafrost is releasing these ice-nucleating particles.
Some rainstorms drench you in a second, while others drop rain in a nice peaceful drizzle. A meteorologist explains how rainstorms can be so different.
Climate models have been overestimating how much sunlight hits the Southern Ocean. This is because the clouds there are different from clouds anywhere else. Bacterial DNA helped us understand why.
They may look comfy to sit on but you’d plummet through and hit the ground.
Sam Schooler/Unsplash
Why is thunder so loud? It’s because the amount of electrical energy that flows from the cloud to the ground is so enormous.
Sometimes air goes up past the condensation level then falls back below the condensation level, then up, then below, again and again. This creates clouds that are stripy, often with lines between the clouds.
Robert Lawry/Author provided
Clouds formed by rising warm air currents are called ‘convection clouds’. Because of all the rising air coming up, these clouds can be bumpy on top, sometimes looking like cotton wool or cauliflower.