Climate Change ☀️
Record-breaking temperatures more likely in populated tropics
New research shows that most extreme heat events are going to occur in the tropics rather than the poles.

Icebergs crumbling into the sea may be what first come to mind when imagining the most dramatic effects of global warming.

But new University of Arizona-led research, published in Geophysical Research Letters, suggests that more record-breaking temperatures will actually occur in the tropics, where there is a large and rapidly growing population.

... Raw temperature data over the polar region reveals a huge range in temperature. Over the tropics, where it's warm and humid, raw temperature data reveals smaller temperature fluctuations. But when temperature is normalized -- or divided- by the temperature fluctuations over the same period, the data shows that the tropics have greater normalized warming and are actually experiencing more record-breaking heat events.
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Five million years of climate change preserved in one place
An international team of researchers has now succeeded in reconstructing changes in rainfall in Central Asia over the past five million years. The information preserved within the sedimentary succession provides the missing link for understanding land-water feedbacks for global climate.

Until now, little has been known about the role Central Asia plays in global climate evolution past and present. Earth's climate evolution over the past five million years has been understood mainly from the perspective of marine mechanisms. In contrast, the significance of climate feedbacks that originated on land -- rather than in the oceans, lakes or ice cores -- has remained largely unexplored. The international research team has filled this gap with their field research in Charyn Canyon.
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South Pole and East Antarctica warmer than previously thought during last ice age, two studies show
Glaciologists analyzed Antarctic ice cores to understand the continent's air temperatures during the most recent glacial period. The results help understand how the region behaves during a major climate transition.

The South Pole and the rest of East Antarctica is cold now and was even more frigid during the most recent ice age around 20,000 years ago -- but not quite as cold as previously believed.
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Climate change, periodic modification of Earth’s climate brought about as a result of changes in the atmosphere as well as interactions between the atmosphere and various other geologic, chemical, biological, and geographic factors within the Earth system.

Source: Climate change - Evidence for climate change | Britannica
Climate Change is the defining issue of our time and we are at a defining moment. From shifting weather patterns that threaten food production, to rising sea levels that increase the risk of catastrophic flooding, the impacts of climate change are global in scope and unprecedented in scale. Without drastic action today, adapting to these impacts in the future will be more difficult and costly.

Source: Climate Change | United Nations