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Climate change and climate prediction. Read science articles on regional climates and global climate shifts. Updated daily.
Updated: 1 hour 5 min ago

Extreme, high temperatures may double or triple heart-related deaths

Mon, 03/30/2020 - 16:34
In Kuwait, a country known for hot weather, death certificates reveal that on days when the temperatures reached extremes of an average daily temperature of 109 degrees Fahrenheit, the number of deaths from cardiovascular disease dramatically increased. With unprecedentedly high temperatures, people living in inherently hot regions of the world may be at particularly high risk of heat-related cardiovascular death.

Intensity of past methane release measured with new, groundbreaking methods

Mon, 03/30/2020 - 16:34
A novel approach to geochemical measurements helps scientists reconstruct the past intensity of the methane seeps in the Arctic Ocean. Recent studies show that methane emissions fluctuated, strongly, in response to known periods of abrupt climate change at the end of the last glacial cycle.

Seafloor of Fram Strait is a sink for microplastic from Arctic and North Atlantic Ocean

Fri, 03/27/2020 - 20:15
Working in the Arctic Fram Strait, scientists have found microplastic throughout the water column with particularly high concentrations at the ocean floor.

Control of anthropogenic atmospheric emissions can improve water quality in seas

Fri, 03/27/2020 - 16:30
A new research highlighted the importance of reducing fossil fuel combustion not only to curb the trend of global warming, but also to improve the quality of China's coastal waters.

Longer lives not dependent on increased energy use

Fri, 03/27/2020 - 01:39
Growing consumption of energy and fossil fuels over four decades did not play a significant role in increasing life expectancy across 70 countries. New research has quantified the importance of different development factors to improvements in physical health on an international scale.

Coral tells own tale about El Niño's past

Thu, 03/26/2020 - 20:44
Scientists use data from ancient coral to build a record of temperatures in the tropical Pacific Ocean over the last millennium. The data question previous links between volcanic eruptions and El Niño events.

How stable is deep ocean circulation in warmer climate?

Thu, 03/26/2020 - 20:43
If circulation of deep waters in the Atlantic stops or slows due to climate change, it could cause cooling in northern North America and Europe - a scenario that has occurred during past cold glacial periods. Now, a new study suggests that short-term disruptions of deep ocean circulation occurred during warm interglacial periods in the last 450,000 years, and may happen again.

As the ocean warms, marine species relocate toward the poles

Thu, 03/26/2020 - 18:41
Since pre-industrial times, the world's oceans have warmed by an average of one degree Celsius (1°C). Now researchers report that those rising temperatures have led to widespread changes in the population sizes of marine species. The researchers found a general pattern of species having increasing numbers on their poleward sides and losses toward the equator.

Under extreme heat and drought, trees hardly benefit from an increased CO2 level

Thu, 03/26/2020 - 18:41
The increase in the CO2 concentration of the atmosphere does not compensate the negative effect of greenhouse gas-induced climate change on trees: The more extreme drought and heat become, the less do trees profit from the increased supply with carbon dioxide in terms of carbon metabolism and water use efficiency. This finding was obtained by researchers of Karlsruhe Institute of Technology (KIT) when studying Aleppo pines. Their study is reported in New Phytologist (DOI: 10.1111/nph.16471).

Less ice, more methane from northern lakes: A result from global warming

Thu, 03/26/2020 - 18:41
Shorter and warmer winters lead to an increase in emissions of methane from northern lakes, according to a new study. Longer ice-free periods contribute to increased methane emissions. In Finland, emissions of methane from lakes could go up by as much as 60%.

New framework will help decide which trees are best in the fight against air pollution

Thu, 03/26/2020 - 14:08
A study has provided a comprehensive guide on which tree species are best for combating air pollution that originates from our roads -- along with suggestions for how to plant these green barriers to get the best results.

Renewable energy developments threaten biodiverse areas

Wed, 03/25/2020 - 22:11
More than 2000 renewable energy facilities are built in areas of environmental significance and threaten the natural habitats of plant and animal species across the globe. A research team mapped the location of solar, wind and hydropower facilities in wilderness, protected areas and key biodiversity areas.

A small forage fish should command greater notice, researchers say

Wed, 03/25/2020 - 21:41
A slender little fish called the sand lance plays a big role as 'a quintessential forage fish' for puffins, terns and other seabirds, humpback whales and other marine mammals, and even bigger fish such as Atlantic sturgeon, cod and bluefin tuna in the Gulf of Maine and northwest Atlantic Ocean. But scientists say right now they know far too little about its biology and populations to inform 'relevant management, climate adaptation and conservation efforts.'

Heat takes its toll on mental health

Wed, 03/25/2020 - 20:38
Hot days increase the probability that an average adult in the US will report bad mental health, according to a new study.

International ozone treaty stops changes in Southern Hemisphere winds

Wed, 03/25/2020 - 18:08
The Montreal Protocol of 1987 phased out production of ozone-destroying substances such as chlorofluorocarbons (CFCs). Beginning around 2000, concentrations of those chemicals in the stratosphere started to decline and the ozone hole began to recover. In this study, researchers have shown that around the year 2000, the circulation of the Southern Hemisphere also stopped expanding polewards -- a pause or slight reversal of the earlier trends.

New model helps explain seasonal variations in urban heat islands

Wed, 03/25/2020 - 02:20
Rising temperatures and shifting rainfall patterns linked to climate change may alter the seasonality of urban heat islands in coming decades. A new model simplifies predictions of 'urban heat islands' based on temperature, sunlight and rainfall.

Plants and animals aren't so different when it comes to climate

Wed, 03/25/2020 - 02:20
A new study reveals that plants and animals are remarkably similar in their responses to changing environmental conditions across the globe, which may help explain how they are distributed today and how they will respond to climate change in the future.

eDNA provides researchers with 'more than meets the eye'

Tue, 03/24/2020 - 19:19
Researchers have used next generation DNA sequencing to learn more about the different species of plants, insects and animals present in the Pilbara and Perth regions of Western Australia.

Ships' emissions create measurable regional change in clouds

Tue, 03/24/2020 - 16:27
Years of cloud data over a shipping route between Europe and South Africa shows that pollution from ships has significantly increased the reflectivity of the clouds. More generally, the results suggest that industrial pollution's effect on clouds has masked about a third of the warming due to fossil fuel burning since the late 1800s.

New 3D view of methane tracks sources

Mon, 03/23/2020 - 20:12
NASA's new 3-dimensional portrait of methane concentrations shows the world's second largest contributor to greenhouse warming.