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Climate change and climate prediction. Read science articles on regional climates and global climate shifts. Updated daily.
Updated: 34 min 43 sec ago

Extreme wildfires threaten to turn boreal forests from carbon sinks to carbon sources

Wed, 08/21/2019 - 20:52
A research team investigated the impact of extreme fires on previously intact carbon stores by studying the soil and vegetation of the boreal forest and how they changed after a record-setting fire season in the Northwest Territories in 2014. They collected 200 soil samples and used radiocarbon dating to estimate the carbon age. They found combustion of legacy carbon in nearly half of the samples taken from young forests (less than 60 years old).

Forecasting dusty conditions months in advance

Wed, 08/21/2019 - 18:50
A researcher has developed an advanced technique for forecasting dusty conditions months before they occur, promising transportation managers, climatologists and people suffering health issues much more time to prepare for dusty conditions.

New evidence highlights growing urban water crisis

Wed, 08/21/2019 - 18:18
New research has found that in 15 major cities in the global south, almost half of all households lack access to piped utility water, affecting more than 50 million people.

Wave climate projections predict risks to Aussie coastlines

Wed, 08/21/2019 - 17:00
Researchers have mapped out how much waves are likely to change around the globe under climate change and found that if we can limit warming to 2 degrees, signals of wave climate change are likely to stay within the range of natural climate variability.

Monitoring CO2 leakage sites on the ocean floor

Wed, 08/21/2019 - 15:22
Injecting carbon dioxide (CO2) deep below the seabed could be an important strategy for mitigating climate change, according to some experts. However, scientists need a reliable way to monitor such sites for leakage of the greenhouse gas. Now, researchers have studied natural sources of CO2 release off the coast of Italy, using what they learned to develop models that could be applied to future storage sites.

Origin of massive methane reservoir identified

Tue, 08/20/2019 - 23:46
New research provides evidence of the formation and abundance of abiotic methane -- methane formed by chemical reactions that don't involve organic matter -- on Earth and shows how the gases could have a similar origin on other planets and moons, even those no longer home to liquid water.

Profound patterns in globally important algae

Tue, 08/20/2019 - 22:29
A globally important ocean algae is mysteriously scarce in one of the most productive regions of the Atlantic Ocean, according to a new article. A massive dataset has revealed patterns in the regions where Atlantic coccolithophores live, illuminating the inner workings of the ocean carbon cycle and raising new questions.

Plants could remove six years of carbon dioxide emissions -- if we protect them

Tue, 08/20/2019 - 20:09
By analysing 138 experiments, researchers have mapped the potential of today's plants and trees to store extra carbon by the end of the century.

Longline fishing hampering shark migration

Tue, 08/20/2019 - 17:15
Longline fisheries around the world are significantly affecting migrating shark populations, according to an international study. The study found that approximately a quarter of the studied sharks' migratory paths fell under the footprint of longline fisheries, directly killing sharks and affecting their food supply.

A battery-free sensor for underwater exploration

Tue, 08/20/2019 - 17:14
Researchers have developed a battery-free underwater communication system that uses near-zero power to transmit sensor data. The system could be used to monitor sea temperatures to study climate change and track marine life over long periods -- and even sample waters on distant planets.

All-in-one: New microbe degrades oil to gas

Tue, 08/20/2019 - 15:18
The tiny organisms cling to oil droplets and perform a great feat: As a single organism, they may produce methane from oil by a process called alkane disproportionation. Previously this was only known from symbioses between bacteria and archaea. Scientists have now found cells of this microbe called Methanoliparia in oil reservoirs worldwide.

Roadmap for detecting changes in ocean due to climate change

Mon, 08/19/2019 - 23:43
When will we see significant changes in the ocean due to climate change? A new study finds that some changes are noticeable already, while others will take up to a century.

Global change is triggering an identity switch in grasslands

Mon, 08/19/2019 - 23:43
Since the first Homo sapiens emerged in Africa roughly 300,000 years ago, grasslands have sustained humanity and thousands of other species. But today, those grasslands are shifting beneath our feet. Global change -- which includes climate change, pollution and other widespread environmental alterations -- is transforming the plant species growing in them, and not always in the ways scientists expected, a new study has revealed.

Why there's a 'sweet spot' depth for underground magma chambers

Mon, 08/19/2019 - 20:21
Computer models show why eruptive magma chambers tend to reside between six and 10 kilometers underground.

Uncertainty in greenhouse gas emissions estimates

Mon, 08/19/2019 - 18:00
National or other emissions inventories of greenhouse gases that are used to develop strategies and track progress in terms of emissions reductions for climate mitigation contain a certain amount of uncertainty, which inevitably has an impact on the decisions they inform. Researchers contributed to several studies in a recently published volume that aims to enhance understanding of uncertainty in emissions inventories.

Circulation of water in deep Earth's interior

Mon, 08/19/2019 - 18:00
The existence of water in deep Earth is considered to play an important role in geodynamics, because water drastically changes the physical properties of mantle rock, such as melting temperature, electric conductivity, and rheological properties. Water is transported into deep Earth by the hydrous minerals in the subducting cold plates. Hydrous minerals, such as serpentine, mica and clay minerals, contain water in the form of hydroxyl (-OH) in the crystal structure. Most of the hydrous minerals decompose into anhydrous minerals and water when they are transported into deep Earth, at 40-100 km depth, due to the high temperature and pressure conditions.

Tools to help manage seagrass survival

Mon, 08/19/2019 - 16:30
A new study has developed a statistical toolbox to help avoid seagrass loss which provides shelter, food and oxygen to fish and at-risk species like dugongs and green turtles.

Climate change to shrink economies of rich, poor, hot and cold countries alike unless Paris Agreement holds

Mon, 08/19/2019 - 15:24
Detrimental economic effects of global warming are likely to go beyond those being discussed in policy circles -- particularly for wealthier nations, say researchers. Study suggests that 7% of global GDP will disappear by 2100 as a result of business-as-usual carbon emissions -- including over 10% of incomes in both Canada and the United States.

Tiny GPS backpacks uncover the secret life of desert bats

Fri, 08/16/2019 - 17:10
A new study using miniaturized satellite-based tags revealed that during drier periods desert bats must fly further and longer to fulfill their nightly needs. According to researchers this signals their struggle in facing dry periods.

New insight into bacterial infections found in the noses of healthy cattle

Fri, 08/16/2019 - 14:55
New research used the 'One Health' approach to study three bacterial species in the noses of young cattle and found the carriage of the bacteria was surprisingly different. The findings which combined ideas and methods from both animal and human health research could help prevent and control respiratory diseases.