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Articles on Paleoclimate

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Stalagmites grow from the cave floor up as water drips down. Gayatri Kathayat

1,000-year-old stalagmites from a cave in India show the monsoon isn’t so reliable – their rings reveal a history of long, deadly droughts

As water dripped in a remote cave, it left behind evidence of every monsoon season for a millennium. Scientists say it holds a warning for a country about to become the most populous on Earth.
Colorado’s East Troublesome Fire jumped the Continental Divide on Oct. 22, 2020, and eventually became Colorado’s second-largest fire on record. Lauren Dauphin/NASA Earth Observatory

Rocky Mountain forests burning more now than any time in the past 2,000 years

Scientists studied charcoal layers in the sediment of lake beds across the Rockies to track fires over time. They found increasing fire activity as the climate warmed.
A glacial depositional feature – an erratic – is a large rock that has been ‘bull-dozed’ and deposited by a moving glacier. Elizabeth Rudolph

Marion Island’s last ice age happened earlier than we thought. Why it matters

These findings are in stark contrast with the original worldview that suggested the entire globe was at a maximum glaciated state around 20 000 years ago.
Ashurbanipal, last major ruler of the Assyrian Empire, couldn’t outrun the effects of climate change. British Museum

Climate change fueled the rise and demise of the Neo-Assyrian Empire, superpower of the ancient world

What caused the rise and then collapse 2,600 years ago of this vast empire centered on Mesopotamia? Clues from a cave in northern Iraq point to abrupt climate change.
The muck that’s been accumulating at the bottom of this lake for 20,000 years is like a climate time capsule. Christopher R. Moore

New evidence that an extraterrestrial collision 12,800 years ago triggered an abrupt climate change for Earth

Why did Earth’s climate rapidly cool 12,800 years ago? Evidence is mounting that a comet or asteroid collision is to blame, with new support coming from the bottom of a South Carolina lake.
European heatwaves are part of a pattern of rapid global warming. EPA/ABEL ALONSO

2,000 years of records show it’s getting hotter, faster

The clearest picture yet of the past 2,000 years of global temperatures has shown warming in the last 50-odd years is unprecedented in the last two millennia.

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