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Rising carbon dioxide levels will change marine habitats and fish communities

Science Daily: Climate News - Mon, 04/20/2020 - 15:42
Researchers showed that elevated dissolved CO2 conditions can lead to a 45% decrease of fish diversity.

Extinction of threatened marine megafauna would lead to huge loss in functional diversity

Science Daily: Climate News - Sat, 04/18/2020 - 04:29
The extinction of threatened marine megafauna species could result in larger than expected losses in functional diversity, according to new research.

Papua New Guinea highland research redates Neolithic period

Science Daily: Climate News - Fri, 04/17/2020 - 17:31
A new report on the emergence of agriculture in highland Papua New Guinea shows advancements often associated with a later Neolithic period occurred about 1,000 years' earlier than previously thought.

Climate-driven megadrought is emerging in western US, says study

Science Daily: Climate News - Thu, 04/16/2020 - 22:17
A new study says a megadrought worse than anything known from recorded history is very likely in progress in the western United States and northern Mexico, and warming climate is playing a key role.

Can coral reefs 'have it all'?

Science Daily: Climate News - Thu, 04/16/2020 - 22:16
A new study outlines how strategic placement of no-fishing marine reserves can help coral reef fish communities thrive.

Arctic stratospheric ozone levels hit record low in March

Science Daily: Climate News - Thu, 04/16/2020 - 20:59
Ozone levels above the Arctic reached a record low for March, researchers report. An analysis of satellite observations show that ozone levels reached their lowest point on March 12 at 205 Dobson units. While such low levels are rare, they are not unprecedented. Similar low ozone levels occurred in the upper atmosphere, or stratosphere, in 1997 and 2011. In comparison, the lowest March ozone value observed in the Arctic is usually around 240 Dobson units.

Bornean treeshrews can take the heat

Science Daily: Climate News - Thu, 04/16/2020 - 16:19
To better understand if small tropical mammals also have increased vulnerability as their environments heat up, experts in mammology and mammal health studied Bornean treeshrews.

Ash dieback is less severe in isolated ash trees

Science Daily: Climate News - Thu, 04/16/2020 - 14:26
New research finds that ash dieback is far less severe in the isolated conditions ash is often found in, such as forests with low ash density or in open canopies like hedges, suggesting the long term impact of the disease on Europe's ash trees will be more limited than previously thought.

Economists find carbon footprint grows with parenthood

Science Daily: Climate News - Wed, 04/15/2020 - 22:29
Two-adult households with children emit over 25% more carbon dioxide than two-adult households without children, according to researchers.

Study unlocks the secret of corals' tolerance to climate change: Their diet

Science Daily: Climate News - Wed, 04/15/2020 - 20:34
Researchers have developed a new method for determining what corals eat, and demonstrated that reliance on certain nutritional sources underpins their bleaching susceptibility in warming oceans.

Soot may only be half the problem when it comes to cookstoves

Science Daily: Climate News - Wed, 04/15/2020 - 18:04
Researchers spent two weeks in India cooking with local residents. They found that soot wasn't the only worrisome byproduct of traditional cookstoves; organic carbons are causing problems, too.

Unusually clear skies drove record loss of Greenland ice in 2019

Science Daily: Climate News - Wed, 04/15/2020 - 16:12
Last year was one of the worst years on record for the Greenland ice sheet, which shrunk by hundreds of billions of tons. According to a new study, that mind-boggling ice loss wasn't caused by warm temperatures alone; the new study identifies exceptional atmospheric circulation patterns that contributed in a major way to the ice sheet's rapid loss of mass.

Turned-down temperatures boost crops' penchant for production

Science Daily: Climate News - Wed, 04/15/2020 - 00:37
Drought and heat put stress on plants and reduce grain yield. For some farmers, irrigation is the answer. Many of us assume the practice boosts crop yields by delivering soil water, but it turns out irrigation's cooling effect on crops is important in its own right.

Volcanic CO2 emissions helped trigger Triassic climate change

Science Daily: Climate News - Tue, 04/14/2020 - 19:57
A new study finds volcanic activity played a direct role in triggering extreme climate change at the end of the Triassic period 201 million year ago, wiping out almost half of all existing species. The amount of carbon dioxide released into the atmosphere from these volcanic eruptions is comparable to the amount of CO2 expected to be produced by all human activity in the 21st century.

Timely precipitation will be essential for plants to counteract global warming

Science Daily: Climate News - Tue, 04/14/2020 - 16:57
A new Columbia Engineering study shows that increased water stress -- higher frequency of drought due to higher temperatures, is going to constrain the phenological cycle: in effect, by shutting down photosynthesis, it will generate a lower carbon uptake at the end of the season, thus contributing to increased global warming.

Supercomputing future wind power rise

Science Daily: Climate News - Tue, 04/14/2020 - 16:57
First detailed study of scenarios for how wind energy can expand to 20 percent of total US electrical supply by 2030. Results showed expansion of installed capacity makes small impact on efficiency and local climate by deploying next generation, larger wind turbines. Improved calculations of US wind resources can ensure better decision making and a better, more robust energy supply.

Estuaries are warming at twice the rate of oceans and atmosphere

Science Daily: Climate News - Tue, 04/14/2020 - 15:42
A 12-year study of 166 estuaries in south-east Australia shows that the waters of lakes, creeks, rivers and lagoons increased 2.16 degrees in temperature and increased acidity. Researchers say this could impact economic activity and biodiversity worldwide.

Heavy iron isotopes leaking from Earth's core

Science Daily: Climate News - Mon, 04/13/2020 - 21:40
Earth's molten core may be leaking iron, according to researchers who analyzed how iron behaves inside our planet.

Offshore oil and gas platforms release more methane than previously estimated

Science Daily: Climate News - Mon, 04/13/2020 - 21:05
Offshore energy-producing platforms in US waters of the Gulf of Mexico are emitting twice as much methane, a greenhouse gas, than previously thought, according to a new study.

Exploring the link between education and climate change

Science Daily: Climate News - Mon, 04/13/2020 - 19:00
What are the most effective ways to achieve desired sustainable development outcomes across all aspects of wellbeing, and how might the pursuit of some of these goals affect progress toward others? Researchers aims to address these questions to help understand possible synergies and tradeoffs among these goals.

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