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Climate change and climate prediction. Read science articles on regional climates and global climate shifts. Updated daily.
Updated: 29 min 14 sec ago

Dietary changes could produce big offsets to carbon emissions

Fri, 09/11/2020 - 00:18
Eating less meat and dairy products in favor of plant-based proteins like those found in grains, legumes and nuts could make a huge difference in how much carbon dioxide reaches the atmosphere.

Multiphase buffering by ammonia explains wide range of atmospheric aerosol acidity

Thu, 09/10/2020 - 22:03
Anthropogenic ammonia emissions and the water content matter more than dry particle composition for the acidity of atmospheric aerosols in populated regions.

Loss of sea otters accelerating the effects of climate change

Thu, 09/10/2020 - 22:03
The impacts of predator loss and climate change are combining to devastate living reefs that have defined Alaskan kelp forests for centuries, according to new research.

High-fidelity record of Earth's climate history puts current changes in context

Thu, 09/10/2020 - 22:03
Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which the researchers dubbed Hothouse, Warmhouse, Coolhouse, and Icehouse. These major climate states persisted for millions and sometimes tens of millions of years, and within each one the climate shows rhythmic variations corresponding to changes in Earth's orbit around the sun.

$500 billion question: What's the value of studying the ocean's biological carbon pump?

Thu, 09/10/2020 - 20:04
A new study puts an economic value on the benefit of research to improve knowledge of the biological carbon pump and reduce the uncertainty of ocean carbon sequestration estimates.

People are behind costly, increasing risk of wildfire to millions of homes

Thu, 09/10/2020 - 20:04
People are starting almost all the wildfires that threaten US homes, according to an innovative new analysis combining housing and wildfire data. Through activities like debris burning, equipment use and arson, humans were responsible for igniting 97% of home-threatening wildfires, researchers report.

Understanding Earth's 'deep-carbon cycle'

Thu, 09/10/2020 - 19:01
New geologic findings about the makeup of the Earth's mantle are helping scientists better understand long-term climate stability and even how seismic waves move through the planet's layers.

Historical climate fluctuations in Central Europe overestimated due to tree ring analysis

Thu, 09/10/2020 - 17:06
Tree rings exaggerate, a team of researchers finds. Scientists deduce historical climatic conditions for the past hundreds of years from the width of the annual growth rings of trees. Previous temperature reconstructions from the annual tree rings are however to some extent inaccurate, according to a new study. Tree rings overstate the natural climatic variations of past centuries. A comparison of data from church and city archives shows that the climate has developed much more evenly.

New insight on the impacts of Earth's biosphere on air quality

Wed, 09/09/2020 - 18:48
A new study provides the first global satellite measurements of one of the most important chemicals affecting Earth's atmosphere.

Consequences of the 2018 summer drought

Wed, 09/09/2020 - 18:47
The drought that hit central and northern Europe in summer 2018 had serious effects on crops, forests and grasslands. Researchers are showing what effects this had and what lessons can be learned.

Do as plants do: Novel photocatalysts can perform solar-driven conversion of CO2 into fuel

Wed, 09/09/2020 - 17:03
Scientists develop a novel 'heterostructured' photocatalyst using titanium and copper, two abundant and relatively inexpensive metals. Their cost-effective synthesis procedure, coupled with the high stability of the photocatalyst, provides an economically feasible way to convert waste carbon dioxide and water into useful hydrocarbon fuels using endless sunlight.

Climate engineering: Modelling projections oversimplify risks

Wed, 09/09/2020 - 17:02
Climate change is gaining prominence as a political and public priority. But many ambitious climate action plans foresee the use of climate engineering technologies whose risks are insufficiently understood. Researchers now describe how evolving modelling practices are trending towards 'best-case' projections. They warn that over-optimistic expectations of climate engineering may reinforce the inertia with which industry and politics have been addressing decarbonization.

Humans, not climate, have driven rapidly rising mammal extinction rate

Wed, 09/09/2020 - 17:02
Human impact can explain ninety-six percent of all mammal species extinctions of the last hundred thousand years, according to a new study.

Wild cousins may help crops battle climate change

Wed, 09/09/2020 - 15:59
Wild relatives of our domestic crops already cope with harsh conditions and resist disease. Can we use them to help our preferred crops adapt?

Deep channels link ocean to Antarctic glacier

Wed, 09/09/2020 - 03:05
Newly discovered deep seabed channels beneath Thwaites Glacier in West Antarctica may be the pathway for warm ocean water to melt the underside of the ice. Data from two research missions, using aircraft and ship, are helping scientists to understand the contribution this huge and remote glacier is likely to make to future global sea level rise.

Process that might have led to first organic molecules

Wed, 09/09/2020 - 00:05
New research identifies a process that might have been key in producing the first organic molecules on Earth about 4 billion years ago, before the origin of life. The process, which is similar to what might have occurred in some ancient underwater hydrothermal vents, may also have relevance to the search for life elsewhere in the universe.

Fossil growth reveals insights into the climate

Tue, 09/08/2020 - 20:10
Panthasaurus maleriensis is an ancestor of today's amphibians and has been considered the most puzzling representative of the Metoposauridae. Paleontologists examined the fossil's bone tissue and compared it with other representatives of the family also dating from the Triassic. They discovered phases of slower and faster growth in the bone, which apparently depended on the climate.

Detecting soil-surface ozone early can help prevent damage to grapes and apples

Tue, 09/08/2020 - 20:10
Farmers and fruit growers report that climate change is leading to increased ozone concentrations on the soil surface in their fields and orchards, which can cause irreversible plant damage, reduce crop yields and threaten the food supply. A ne method of vapor-depositing conducting polymer 'tattoos' on plant leaves can accurately detect and measure such ozone damage, even at low exposure levels.

Developing models to predict storm surges

Tue, 09/08/2020 - 20:10
Storm surges sometimes can increase coastal sea levels 10 feet or more, jeopardizing communities and businesses along the water, but new research shows there may be a way to predict periods when it's more likely that such events occur. Researchers have developed models to predict extreme changes in sea level by linking storm surges to large-scale climate variability.

Trees living fast die young

Tue, 09/08/2020 - 18:33
A global analysis reveals for the first time that across almost all tree species, fast growing trees have shorter lifespans. This international study further calls into question predictions that greater tree growth means greater carbon storage in forests in the long term.