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Ancient rain gauge: New evidence links groundwater, climate changes in deep time

Science Daily: Climate News - Tue, 11/12/2019 - 19:26
Changes in groundwater millions of years ago created alternating layers of vivid yellow and brown in the mineral sphalerite, and those variations align with movements in Earth's orbit that impacted climate in the deep past, scientists found.

Last Arctic ice refuge is disappearing

Science Daily: Climate News - Tue, 11/12/2019 - 18:40
The oldest and thickest Arctic sea ice is disappearing twice as fast as ice in the rest of the Arctic Ocean, according to new research.

This is what the monsoon might look like in a warmer world

Science Daily: Climate News - Tue, 11/12/2019 - 18:02
In the last interglacial period on Earth about 125,000 years ago, the Indian monsoon was longer, more extreme and less reliable than it is today. This is the conclusion drawn after analyses of a dripstone from a cave in north-eastern India, combining various methods that provide information about supra-regional and local weather phenomena and the climate dynamics of the past.

Bacteria may contribute more to climate change as planet heats up

Science Daily: Climate News - Tue, 11/12/2019 - 18:02
As bacteria adapt to hotter temperatures, they speed up their respiration rate and release more carbon, potentially accelerating climate change.

Nitrous oxide emissions set to rise in the Pacific Ocean

Science Daily: Climate News - Tue, 11/12/2019 - 18:02
The acidification of the Pacific Ocean in northern Japan is increasing the natural production rate of N2O, an ozone-depleting greenhouse gas.

Hot town, springtime in the city: Urbanization delays spring plant growth in warm regions

Science Daily: Climate News - Tue, 11/12/2019 - 16:57
The first appearance of bright green leaves heralds the start of spring. But a new study shows that urbanization shifts this seasonal cue in nuanced ways, with cities in cold climates triggering earlier spring plant growth and cities in warm climates delaying it.

Study shows where global renewable energy investments have greatest benefits

Science Daily: Climate News - Tue, 11/12/2019 - 16:06
New study finds that the amount of climate and health benefits achieved from renewable energy depends on the country where it is installed. Countries with higher carbon dioxide (CO2) emissions and more air pollution, such as India, China, and areas in Southeast Asia and Eastern Europe, achieve greater climate and health benefits per megawatt (MW) of renewable energy installed than those operating in areas such as North America, Brazil, and parts of Europe.

Nature's backup plan for converting nitrogen into plant nutrients

Science Daily: Climate News - Tue, 11/12/2019 - 01:01
Researchers have found that nature has developed a backup method for converting atmospheric nitrogen into the nutrient form critical to plant growth and soil fertility. The researchers report that the process known as nitrogen fixation can be carried out by the metal vanadium in ecosystems where the primary catalyst molybdenum is scarce. The study suggests that nature's capacity to restore ecosystems in the wake of human-made disturbances or fertilize agricultural land is more resilient than previously thought.

Finding common ground for scientists and policymakers on soil carbon and climate change

Science Daily: Climate News - Mon, 11/11/2019 - 22:06
Scientists argue that public debate about the role of soil carbon in battling climate change is undermining the potential for policymakers to implement policies that build soil carbon for other environmental and agricultural benefits.

Hurricanes have become bigger and more destructive for USA

Science Daily: Climate News - Mon, 11/11/2019 - 22:06
A new study shows that hurricanes have become more destructive since 1900, and the worst of them are more than 3 times as frequent now than 100 years ago. A new way of calculating the destruction unequivocally shows a climatic increase in the frequency of the most destructive hurricanes that routinely raise havoc on the North American south- and east coast.

Coastlines' contribution to climate change might have been underestimated

Science Daily: Climate News - Fri, 11/08/2019 - 23:25
Permafrost coasts make up about one third of the Earth's total coastline. As a result of accelerated climate change, whole sections of coastline rapidly thaw, and erode into the Arctic Ocean. A new study now shows that large amounts of carbon dioxide are potentially being produced along these eroding permafrost coastlines in the Arctic.

Turbulence creates ice in clouds

Science Daily: Climate News - Fri, 11/08/2019 - 17:28
Vertical air motions increase ice formation in mixed-phase clouds. This correlation was predicted theoretically for a long time, but could now be observed for the first time in nature. Using laser and radar equipment, the team measured the vertical air velocity and ice formation in thin mixed-phase clouds.

Aviation emissions' impacts on air quality larger than on climate, study finds

Science Daily: Climate News - Fri, 11/08/2019 - 03:25
New research has quantified the climate and air quality impacts of aviation, broken down by emission type, altitude and location. The team found that growth in aviation causes twice as much damage to air quality as to the climate.

Unless warming is slowed, emperor penguins will be marching towards extinction

Science Daily: Climate News - Thu, 11/07/2019 - 23:07
Emperor penguins are some of the most striking and charismatic animals on Earth, but a new study has found that a warming climate may render them extinct by the end of this century.

How climate change will affect hydropower production in Canada

Science Daily: Climate News - Thu, 11/07/2019 - 23:00
Changing climate and weather patterns are going to have dramatic impacts on Canada's production potential of hydroelectricity, according to new research. Hydropower giant Quebec will see its hydroelectricity output potential jump by as much as 15%. In contrast, British Columbia, the second biggest hydropower producer in Canada, as well as Alberta, the Northwest Territories and Nunavut, will see drops in production potential as steep as 10%.

Melting Arctic sea ice linked to emergence of deadly virus in marine mammals

Science Daily: Climate News - Thu, 11/07/2019 - 18:29
Scientists have linked the decline in Arctic sea ice to the emergence of a deadly virus that could threaten marine mammals in the North Pacific, according to a study.

Carbon dioxide capture and use could become big business

Science Daily: Climate News - Thu, 11/07/2019 - 16:39
Capturing carbon dioxide and turning it into commercial products, such as fuels or construction materials, could become a new global industry, according to a new study.

Investigation of oceanic 'black carbon' uncovers mystery in global carbon cycle

Science Daily: Climate News - Thu, 11/07/2019 - 15:40
An unexpected finding challenges a long-held assumption about the origin of oceanic black coal, and introduces a tantalizing new mystery: If oceanic black carbon is significantly different from the black carbon found in rivers, where did it come from?

Plants and fungi together could slow climate change

Science Daily: Climate News - Thu, 11/07/2019 - 15:40
A new global assessment shows that human impacts have greatly reduced plant-fungus symbioses, which play a key role in sequestering carbon in soils. Restoring these ecosystems could be one strategy to slow climate change.

Combatting air pollution with nature

Science Daily: Climate News - Wed, 11/06/2019 - 15:55
Air pollution is composed of particles and gases that can have negative impacts on both the environment and human health. Technologies to mitigate pollution have become widespread in recent years, but scientists are now exploring a new, pared-down approach: using nature to restore ecological balance.

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