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18 May 2017

Planting trees cannot replace cutting carbon dioxide emissions, study shows

Planting trees cannot replace cutting carbon dioxide emissions, study shows

Growing plants and then storing the carbon dioxide they have taken up from the atmosphere is not a viable option to counteract unmitigated emissions from fossil fuel burning, a new study shows. Plantations would need to be so large they would eliminate most natural ecosystems or reduce food production if implemented as a late-regret option in the case of substantial failure to reduce emissions, according to the study.

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11 May 2017

Warmer temps cause decline in key runoff measure

Warmer temps cause decline in key runoff measure

Since the mid-1980s, the percentage of precipitation that becomes streamflow in the Upper Rio Grande watershed has fallen more steeply than at any point in at least 445 years, according to a new study. While this decline was driven in part by the transition from an unusually wet period to an unusually dry period, rising temperatures deepened the trend.

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9 May 2017

Paris 1.5°C target may be smashed by 2026

Paris 1.5°C target may be smashed by 2026

Global temperatures could break through the 1.5°C barrier negotiated at the Paris conference as early as 2026 if a slow-moving, natural climate driver known as the Interdecadal Pacific Oscillation (IPO) has, as suspected, moved into a positive phase.

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8 May 2017

Bands of extra-tough ice slow down cracks in Antarctica’s Larsen C ice shelf

Bands of extra-tough ice slow down cracks in Antarctica’s Larsen C ice shelf

The stability of the Antarctic Peninsula’s largest ice shelf may depend upon stripes of extremely strong ice running down its spine, a new study finds.

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4 May 2017

Hawaiian mountains could lose snow cover by 2100

Hawaiian mountains could lose snow cover by 2100

A new study, accepted for publication in Earth’s Future, a journal of the American Geophysical Union, indicate that Hawaii’s two volcano summits are typically snow-covered at least 20 days each winter, on average, but that the snow cover will nearly disappear by the end of the century.

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3 May 2017

High-altitude aircraft data may help improve climate models

High-altitude aircraft data may help improve climate models

New research in Geophysical Research Letters provides the first actual measurements of the chemical, SO2, in the tropical upper troposphere/lower stratosphere—and there’s a whole lot less than some scientists estimated.

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26 April 2017

Sea level rising faster now than during 1990s, new study shows

Sea level rising faster now than during 1990s, new study shows

Global mean sea level is rising 25 percent faster now than it did during the late 20th century largely due to increased melting of the Greenland Ice Sheet, a new study shows. Satellites first started measuring sea level rise in 1993. The new study revisits how well these measurements agree with independently observed changes in the various components contributing to sea level rise.

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13 April 2017

Researchers unravel drivers of large iceberg movement

Researchers unravel drivers of large iceberg movement

Researchers have succeeded in modeling how Antarctic icebergs drift through the Southern Ocean, and in identifying the physical factors behind their movement and their melting. Which factors are most important tends to depend on the size of the iceberg in question

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11 April 2017

Researchers find mushrooms may hold clues to effect of carbon dioxide on lawns

Researchers find mushrooms may hold clues to effect of carbon dioxide on lawns

Researchers at the University of New Hampshire set out to determine how rising carbon dioxide concentrations and different climates may alter vegetation like forests, croplands, and 40 million acres of American lawns. They found that the clues may lie in an unexpected source, mushrooms.

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7 April 2017

Scientists uncover isotopic fingerprint of nitrous oxide emissions from Arctic tundra

Scientists uncover isotopic fingerprint of nitrous oxide emissions from Arctic tundra

A new study presents, for the first time, the isotopic fingerprint of nitrous oxide produced by Arctic soils. The finding opens new avenues for predicting future trends in atmospheric nitrous oxide as well as in identifying climate change mitigation actions in the Arctic, a region that is particularly sensitive to climate change.

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