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Temperature record of the past 1000 years
The temperature record of the past 1000 years describes the reconstruction of temperature for the last 1000 years on the Northern Hemisphere. A reconstruction is needed because a reliable surface temperature record exists only since about 1850. Studying past climate is of interest for scientists in order to improve the understanding of current climate variability and, relatedly, providing a better basis for future climate projections. In particular, if the nature and magnitude of natural climate variability can be established, scientists will be better positioned to identify and quantify human generated climate variability. Although temperature reconstructions from proxy data help us understand the character of natural climate variability, attribution of recent climate change relies on a broad range of methodologies in addition to the proxy reconstructions. By far the best observed period is from 1850 to the present day. Over this period the recent instrumental records, mainly based on direct thermometer readings, has approximately global coverage. It shows a general warming in global temperatures.
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Earth & Climate News
November 11, 2026
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Nov. 6, 2026 Scientists have solved a mystery surrounding destructive beetles attacking blueberry bushes in North Carolina, identifying a species whose massive larvae can grow up to five inches long and destroy plant roots. Although farmers have reported damage ...
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Oct. 29, 2026 Ancient ice discovered high in Tibet may be more than 128,000 years old, preserving an extraordinary record of Earth's climate that scientists previously thought had been lost. The discovery reveals a rare glimpse into the last ice age and could ...
Oct. 28, 2026 Scientists have uncovered a surprising connection between Earth's opposite poles that may help explain how the planet plunged into past ice ages. New research suggests that as massive ice sheets expanded across the Northern Hemisphere, they cooled ...
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Oct. 26, 2026 Arctic winter sea ice could disappear much faster than scientists previously expected, according to new research using climate clues from 6,000 years ago. By comparing ancient ocean sediments with modern climate models, researchers found that future ...
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Nov. 10, 2026 A century-old theory about the origins of life on Earth may be wrong. New research from the University of Cambridge suggests that comets traveled too ...
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Nov. 2, 2026 NASA satellites have captured an eerie, skull-shaped formation on a remote Antarctic island, but its haunting appearance conceals a troubling warning about melting glaciers. Unusually warm winter ...
Oct. 30, 2026 Scientists may have solved a 66-million-year-old mystery: how crocodiles survived the asteroid that wiped out the dinosaurs. A sweeping analysis of fossils and ancient climates suggests that their ...
Oct. 28, 2026 Scientists have discovered that magma deep inside Earth can store surprising amounts of extra oxygen, potentially revealing a hidden contributor to our planet's oxygen-rich atmosphere. The findings ...
Oct. 28, 2026 Scientists have uncovered a long-lost volcanic system in Iran that dates back roughly 100 million years, revealing a hidden chapter in Earth's tectonic history. The discovery sheds new light on the ...
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