Science Daily

A stand of bald cypress trees in North Carolina, including one least 2,624 years old, are the oldest known living trees in eastern North America and the oldest wetland tree species in the world. They show evidence of severe flooding and drought during colonial and pre-colonial times.

Abrupt climate change some 8,000 years ago led to a dramatic decline in early South American populations, suggests new research.

Scientists have employed a new method utilizing tsunami signals to calculate the calving magnitude of an ocean-terminating glacier in northwestern Greenland, uncovering correlations between calving flux and environmental factors such as air temperature, ice speed, and ocean tides.

Coral experts around the world said it was impossible to extract a multi-century record of El Niño events. But now a persistent effort has produced the world's first 400-year long record of El Niño events. And the changes researchers have found to El Niños in recent decades are startling.

Forest fires are causing snow to melt earlier in the season, a trend occurring across the western US that may affect water supplies and trigger even more fires, according to a new study.

A study recently found that explosive volcanic eruptions were at least three to eight times more frequent during the peak of the Late Paleozoic Ice Age (about 360 to 260 million years ago).

Researchers have assessed abrupt thaw studies across the permafrost zone to estimate the overall effect. They found carbon emissions have the potential to double the climate feedback associated with permafrost thawing because abrupt thaw releases more methane. It will also have drastic effects on landscape, from altering traditional travel and hunting patterns in the North, to causing costly infrastructure damage to roads and rail lines.

Glaciers are set to disappear completely from almost half of World Heritage sites if business-as-usual emissions continue.

Atmospheric circulation changes about 6 million years ago dried the South American climate and fueled the expansion of grasslands and grass-eating mammals, according to new research.

An international team of scientists has found part of the world's largest ice shelf is melting 10 times faster than the overall ice shelf average, due to solar heating of the surrounding ocean surface.

When India slammed into Asia, the collision changed the configuration of the continents, the landscape, global climate and more. Now scientists have identified one more effect: the oxygen in the world's oceans increased, altering the conditions for life. They created an unprecedented nitrogen record destined to become one of the fundamental datasets for biogeochemical history of Earth.

The tiny shells at the bottom of Lake Nakaumi in southwest Japan may contain the secrets of the East Asia summer monsoon. This rainy season is fairly predictable, ushering in air and precipitation conducive to growing crops, but -- sometimes without any hint -- the pattern fails. Some areas of East Asia are left without rainfall, and their crops die. Other areas are inundated with rain, and their crops and homes flood.

Early melting of winter snow is driving the early arrival of spring in parts of the Arctic.

Researchers studying hi-res satellite imagery have discovered that emperor penguins at the Halley Bay colony in the Weddell Sea have failed to raise chicks for the last three years.

A new study has unraveled the four decade long mystery surrounding the occurrence of a mid-sea Polynya -- a body of unfrozen ocean that appeared within a thick body of ice during Antarctica's winter almost two years ago.

A new study looking at the implications of increased shipping activity and the impact on Antarctic marine biodiversity. The research is an important step in the quest to understand whether invasive species, introduced by shipping, will find the Antarctic marine environment more hospitable as Antarctica's climate changes.

Many researchers and amateur naturalists track dates for the first robin or pond ice-out; such records offer data on timing of plant and animal life cycle events known as phenology. While such observations are common in terrestrial systems, a new report shows limited understanding of similar marine events. The authors urge researchers to increase observations and use more phenological datasets to understand how marine species respond to climate change through phenological shifts in the Gulf of Maine and coastal regions.

Carbon released into the atmosphere by the increasing loss of Arctic permafrost, combined with higher solar absorption by the Earth's surface due to the melting of sea ice and land snow, will accelerate climate change -- and have a multi-trillion dollar impact on the world economy.

A genetic and computational analysis of birds suggests that the Andean and Atlantic tropical forests, which are now almost a thousand kilometers apart, were connected via the Cerrado in the distant past.

A new study has verified the accuracy of recent global warming figures. The team used measurements of the 'skin' temperature of the Earth taken by a satellite-based infrared measurement system called AIRS (Atmospheric Infra-Red Sounder) from 2003 to 2017. They compared these with station-based analyses of surface air temperature anomalies.