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Satellite images confirm uneven impact of climate change

Science Daily: Climate News - Thu, 11/26/2020 - 15:59
Researchers have been following vegetation trends across the planet's driest areas using satellite imagery from recent decades. They have identified a troubling trend: Too little vegetation is sprouting up from rainwater in developing nations, whereas things are headed in the opposite direction in wealthier ones. As a result, the future could see food shortages and growing numbers of climate refugees.

Ice sheets on the move: How north and south poles connect

Science Daily: Climate News - Wed, 11/25/2020 - 18:44
Over the past 40,000 years, ice sheets thousands of kilometers apart have influenced one another through sea level changes, according to new research. New modelling of ice sheet changes during the most recent glacial cycle demonstrates, for the first time, that during this period, changes in the Antarctic ice sheet were driven by the melting ice sheets in the Northern Hemisphere.

In fire-prone West, plants need their pollinators -- and vice versa

Science Daily: Climate News - Wed, 11/25/2020 - 16:15
A new study grounded in the northern Rockies explores the role of wildfire in the finely tuned dance between plants and their pollinators. Previous studies have looked at how fire affects plants, or how fire affects animals. But what is largely understudied is the question of how fire affects both, and about how linkages within those ecological networks might respond to fire disturbance. The findings are particularly significant in light of recent reports about the rapid and widespread decline of insects globally.

Researchers go underwater to study how sponge species vanished

Science Daily: Climate News - Tue, 11/24/2020 - 22:08
Researchers embarked on an underwater journey to solve a mystery: Why did sponges of the Agelas oroides species, which used to be common in the shallow waters along the Mediterranean coast of Israel, disappear? The researchers believe that the main reason for the disappearance of the sponges was the rise in seawater temperatures during the summer months, which in the past 60 years have risen by about 3°C (37°F).

Strengthening the climate change scenario framework

Science Daily: Climate News - Tue, 11/24/2020 - 20:46
Over the past decade, the climate change research community developed a scenario framework that combines alternative futures of climate and society to facilitate integrated research and consistent assessment to inform policy. An international team of researchers assessed how well this framework is working and what challenges it faces.

Indonesian wildfires a 'fixable problem'

Science Daily: Climate News - Tue, 11/24/2020 - 00:34
Indonesian wildfires that cause widespread air pollution and vast carbon emissions are a 'fixable problem', according to the leader of a project set up to help tackle the issue.

Nature is widely adapted to current climate -- making it harder to adjust to a new one

Science Daily: Climate News - Mon, 11/23/2020 - 23:10
To do the right thing at the right time, organisms need to glean cues from their environment. With ongoing climate change, the timing of these cues, like the accumulation of warm days, is rapidly shifting. Now a network of researchers working on an unprecedentedly large dataset of seasonal events has shown that the timing of species' activity fail to keep up with their cues, and that how quickly activity shifts reflects past evolution.

A rich source of nutrients under the Earth's ice sheets

Science Daily: Climate News - Mon, 11/23/2020 - 23:10
Trace elements such as iron and zinc are essential micronutrients for all kinds of organisms. Below ice sheets, which cover around ten percent of the Earth's land surface, larger quantities of these substances are mobilised than previously assumed. This is shown by new data from Greenland and Antarctica, which were collected and analysed by an international research team.

Global warming likely to increase disease risk for animals worldwide

Science Daily: Climate News - Mon, 11/23/2020 - 23:10
Changes in climate can increase infectious disease risk in animals, researchers found -- with the possibility that these diseases could spread to humans, they warn.

Flow physics could help forecasters predict extreme events

Science Daily: Climate News - Mon, 11/23/2020 - 23:10
Researchers are studying a tornado's song and other 'doors to danger' in an increasingly chaotic world.

Shift in atmospheric rivers could affect Antarctic sea ice, glaciers

Science Daily: Climate News - Mon, 11/23/2020 - 19:07
Weather systems responsible for transporting moisture from the tropics to temperate regions in the Southern Hemisphere have been gradually shifting toward the South Pole for the past 40 years, a trend which could lead to increased rates of ice melt in Antarctica, according to new research.

Climate change presents new challenges for the drinking water supply

Science Daily: Climate News - Mon, 11/23/2020 - 18:24
Rising temperatures in Germany's largest drinking water reservoir present new challenges for the drinking water supply. According to a group of researchers, the impacts of this increase can be alleviated by mitigating climate change and applying new management strategies.

Scientists organize to tackle crisis of coral bleaching

Science Daily: Climate News - Mon, 11/23/2020 - 18:24
An international consortium of scientists has created the first-ever common framework for increasing comparability of research findings on coral bleaching.

Changes in fire activity are threatening more than 4,400 species globally

Science Daily: Climate News - Mon, 11/23/2020 - 17:10
More than 4,400 species across the globe are at risk from extinction because of changes in fire activity says a new article.

Siberian primrose has not had time to adapt to climate change

Science Daily: Climate News - Mon, 11/23/2020 - 17:09
Global warming already affects Siberian primrose, a plant species that is threatened in Finland and Norway. According to a recently completed study, individuals of Siberian primrose originating in the Finnish coast on the Bothnian Bay currently fare better in northern Norway than in their home area. The results indicate that the species may not be able to adapt to quickly progressing climate change, which could potentially lead to its extinction.

Breaking the ice on melting and freezing

Science Daily: Climate News - Sun, 11/22/2020 - 16:46
Researchers have shared new insights into melting icebergs and lake ice formation.

U.S.-European mission launches to monitor the world's oceans

Science Daily: Climate News - Sun, 11/22/2020 - 16:40
The Sentinel-6 Michael Freilich satellite will extend a nearly 30-year continuous dataset on sea level collected by an ongoing collaboration of U.S. and European satellites while enhancing weather forecasts and providing detailed information on large-scale ocean currents to support ship navigation near coastlines.

Polar climate affects trade wind strength in tropics

Science Daily: Climate News - Fri, 11/20/2020 - 21:21
The impact of sea surface temperature variations in the tropical Pacific on global climate has long been recognized. For instance, the episodic warming of the tropical Pacific during El Niño events causes melt of sea ice in far-reaching parts of the Southern Ocean via its effect on the global atmospheric circulation. A new study demonstrates that the opposite pathway exists as well.

Some Amazon rainforest regions more resistant to climate change than previously thought

Science Daily: Climate News - Fri, 11/20/2020 - 21:21
A new observational study demonstrates that increasing air dryness does not reduce photosynthesis in certain very wet regions of the Amazon rainforest, contradicting Earth System Models that show the opposite.

New report projects severe coral bleaching globally in this century

Science Daily: Climate News - Fri, 11/20/2020 - 20:26
The United Nations recently released a new report projecting future coral reef bleaching globally.

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