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Climate change and climate prediction. Read science articles on regional climates and global climate shifts. Updated daily.
Updated: 2 hours 31 min ago

Role of Tambora eruption in the 1816 'year without a summer'

Wed, 09/18/2019 - 02:36
A new study has estimated for the first time how the eruption of Mount Tambora changed the probability of the cold and wet European 'year without a summer' of 1816. It found that the observed cold conditions were almost impossible without the eruption, and the wet conditions would have been less likely.

March of the multiple penguin genomes

Wed, 09/18/2019 - 02:36
A new article presents 19 high-coverage penguin genome sequences. Adding this to the two previously published penguin genomes, there are now genome sequences available for all living penguin species. Here, the Penguin Genome Consortium, made up of researchers from 10 countries, has produced an unparalleled amount of information that covers an entire biological order. Research from evolution, the impact of human activities impact, and environmental changes, will benefit from this work.

Peatlands trap CO2, even during droughts

Tue, 09/17/2019 - 20:30
Scientists studied the two species of moss that make up the peatland. They discovered that in hot weather and drought conditions, one species resists, whereas the other is negatively impacted. In wet weather conditions the opposite takes place. Peatland however survives in the end. Although peatlands make up only 3% of the Earth's surface, they store one third of CO2 present in soil. Preserving peatlands would therefore limit the impact of future climate change.

Machine learning used to help tell which wildfires will burn out of control

Tue, 09/17/2019 - 20:30
Scientists have developed a new technique for predicting the final size of a wildfire from the moment of ignition.

Elusive compounds of greenhouse gas isolated

Tue, 09/17/2019 - 18:54
Nitrous oxide (N2O) is a potent atmospheric pollutant. Although naturally occurring, anthropogenic N2O emissions from intensive agricultural fertilization, industrial processes, and combustion of fossil fuels and biomass are a major cause for concern. Researchers have isolated elusive transition metal compounds of N2O that provide clues into how it could be used in sustainable chemical technologies.

How much of corals' nutrition comes from hunting?

Tue, 09/17/2019 - 18:54
When it comes to feeding, corals have a few tricks up their sleeve. Most of their nutrients come from microscopic algae living inside of them, but if those algae aren't creating enough sustenance, corals can use their tentacles to grab and eat tiny prey swimming nearby.

Researchers see need for action on forest fire risk

Tue, 09/17/2019 - 17:45
How do humans affect forest fires? An international team of researchers has now shown for a region in north-eastern Poland that forest fires increasingly occurred there after the end of the 18th century with the change to organized forestry. The increased number of fires subsequently made it necessary to manage and maintain the forests differently. In the wake of climate change, the researchers suggest new strategies for the fight against forest fires.

Large transnational corporations play critical role in global natural resource management

Tue, 09/17/2019 - 17:04
Researchers have identified six corporate actions that, combined with effective public policy and improved governmental regulations, could help large transnational corporations steer environmental stewardship efforts around the world.

To address hunger, many countries may have to increase carbon footprint

Tue, 09/17/2019 - 04:25
Achieving an adequate, healthy diet in most low- and middle-income countries will require a substantial increase in greenhouse gas emissions and water use due to food production, according to new research.

Harnessing tomato jumping genes could help speed-breed drought-resistant crops

Mon, 09/16/2019 - 21:39
Once dismissed as 'junk DNA' that served no purpose, a family of 'jumping genes' found in tomatoes has the potential to accelerate crop breeding for traits such as improved drought resistance.

Atlantic Ocean may get a jump-start from the other side of the world

Mon, 09/16/2019 - 18:40
A key question for climate scientists in recent years has been whether the Atlantic Ocean's main circulation system is slowing down, a development that could have dramatic consequences for Europe and other parts of the Atlantic rim. But a new study suggests help may be on the way from an unexpected source -- the Indian Ocean.

Climate signature identified in rivers globally

Mon, 09/16/2019 - 18:05
For decades geoscientists have been trying to detect the influence of climate on the formation of rivers, but up to now there has been no systematic evidence. A new study discovers a clear climatic signature on rivers globally that challenges existing theories.

Hope for coral recovery may depend on good parenting

Mon, 09/16/2019 - 15:15
Scientists discover coral pass beneficial algal symbionts to offspring to help them cope with rising ocean temperatures. The process occurs during reproduction sans nuclear DNA. It's the first time this has been observed.

We need more realistic experiments on the impact of climate change on ecosystems

Mon, 09/16/2019 - 15:14
When it comes to the impact of climate change on ecosystems, we still have large knowledge gaps. Most experiments are unrealistic because they do not correspond to projected climate scenarios for a specific region. Thus, we lack reliable data on what ecosystems might look like in the future, as a team of biodiversity researchers show.

Environmental pollution in China begins decreasing

Fri, 09/13/2019 - 18:14
For decades pollution in China has paralleled economic growth. But this connection has been weakened in recent years, according to a new international research study.

Extinction of Icelandic walrus coincides with Norse settlement

Fri, 09/13/2019 - 17:14
An international collaboration of scientists has for the first time used ancient DNA analyses and C14-dating to demonstrate the past existence of a unique population of Icelandic walrus that went extinct shortly after Norse settlement some 1100 years ago. Walrus hunting and ivory trade was probably the principal cause of extinction, being one of the earliest examples of commercially driven overexploitation of marine resources.

Low sea-ice cover in the Arctic

Fri, 09/13/2019 - 17:14
The sea-ice extent in the Arctic is nearing its annual minimum at the end of the melt season in September. Only circa 3.9 million square kilometers of the Arctic Ocean are covered by sea ice any more, according to researchers.

Why is Earth so biologically diverse? Mountains hold the answer

Thu, 09/12/2019 - 21:04
Life on Earth is amazingly diverse, and exhibits striking geographical global patterns in biodiversity. A pair of companion papers reveal that mountain regions -- especially those in the tropics -- are hotspots of extraordinary and baffling richness. Although mountain regions cover only 25% of Earth's land area, they are home to more than 85% of the world's species of amphibians, birds, and mammals, and many of these are found only in mountains.

How a carbon-fixing organelle forms via phase separation

Thu, 09/12/2019 - 20:44
Algae remove vast amounts of carbon dioxide from the atmosphere during photosynthesis thanks to an organelle called the pyrenoid, which boosts the efficiency of carbon-fixation. Researchers have known that the pyrenoid forms via a process of phase separation, the same process that causes oil to cluster into droplets in water. The new study looks deeper into how this happens.

'Fire inversions' lock smoke in valleys

Thu, 09/12/2019 - 20:43
There's an atmospheric feedback loop, says an atmospheric scientist, that can lock smoke in valleys in much the same way that temperature inversions lock the smog and gunk in the Salt Lake Valley each winter. But understanding this loop can help scientists predict how smoke will impact air quality in valleys, hopefully helping both residents and firefighters alike.

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