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Scientists observe first signs of healing in the Antarctic ozone layer

Scientists at MIT and elsewhere have identified the "first fingerprints of healing" of the Antarctic ozone layer, published today in the journal Science.

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El Niño could drive intense season for Amazon fires

The smoke from multiple fires in the Mato Grosso region of Brazil rises over forested and deforested areas in this astronaut photograph taken from the International Space Station on Aug. 19, 2014.The long-lasting effects of El Niño are projected to cause an intense fire season in the Amazon, according to the 2016 seasonal fire forecast from scientists at NASA and the...

Watching a forest breathe

A flux tower at the Harvard Forest Environmental Measurements Site is shown. Equipped with various instruments, the towers are capable of measuring the ratio of carbon isotopes -- among other parameters -- above the tree canopy with very high accuracy.For the first time, scientists have been successful in measuring the processes by which an entire forest "breathes," using sophisticated technology involving flux towers and new instrumentation that can precisely...

As sea level rises, Hudson River wetlands may expand

In the face of climate change impact and inevitable sea level rise, Cornell and Scenic Hudson scientists studying New York's Hudson River estuary have forecast new intertidal wetlands, comprising perhaps...

Climate study finds human fingerprint in Northern Hemisphere greening

Earth system models simulate Northern Hemisphere greening. Figure shows the spatial distribution of leaf area index trends (m2/m2/30yr) in the growing season (April-October) during the period of 1982-2011 in the mean of satellite observations (top), Earth system model (ESM) simulations with natural forcings alone (lower left) and ESM simulations with combined anthropogenic and natural forcings (lower right).A multinational team led by the Department of Energy's Oak Ridge National Laboratory Climate Change Science Institute has found the first positive correlation between human activity and enhanced vegetation growth.

New study shows impact of man-made structures on Louisiana's coastal wetlands

The red frames show the location of enlarged interferograms presented in Figures A, B and C. A) Radarsat-1 interferogram of the western Chenier Plain spanning 24-day period (2004/01/03-2004/01/27). In the central part of the interferogram fringe patterns show changes in inland water bodies. The left side of the interferogram shows fringe patterns due to the morphology of the Chenier reflecting water level changes in the mudflats in between the ridges of the Chenier's. B) ALOS interferogram, 92 days (2007/07/03-2007/10/03), of the central Chenier Plain showing phase changes due to elongated fringe patterns sub-parallel to the coastline coinciding with man-made canals. C) ALOS interferogram of the west of the Mississippi River delta, spanning 92-day period (2007/09/11-2007/12/12). The interferogram showing two fringe cycles across the tidal zone mapping the tide inundation extent.As Louisiana's wetlands continue to disappear at an alarming rate, a new study has pinpointed the man-made structures that disrupt the natural water flow and threaten these important ecosystems. The...

Lionfish invading the Mediterranean Sea

A lionfish specimen photographed in the Mediterranean.Rising sea temperatures in the Mediterranean are encouraging alien lionfish species to invade and colonise new territories with potentially serious ecological and socioeconomic impacts.

Stanford scientists find 'water windfall' beneath California's Central Valley

This is the Lost Hills Oil Field in Kern County, California.California's drought-stricken Central Valley harbors three times more groundwater than previously estimated, Stanford scientists have found. Accessing this water in an economically feasible way and safeguarding it from possible contamination...

Researchers trace Mercury's origins to rare meteorite

Around 4.6 billion years ago, the universe was a chaos of collapsing gas and spinning debris. Small particles of gas and dust clumped together into larger and more massive meteoroids...

NASA's IMERG measures deadly West Virginia flooding rainfall

Since June 23, 2016 over two dozen people have been reported killed and hundreds of homes have been destroyed by flooding in West Virginia. Using satellite data, NASA calculated the...

Volcanoes get quiet before they erupt!

The Tilca volcano in Nicaragua is erupting.When dormant volcanoes are about to erupt, they show some predictive characteristics--seismic activity beneath the volcano starts to increase, gas escapes through the vent, or the surrounding ground starts to...

Ectomycorrhizal fungi (shown as mushrooms connected to the roots of the tree) increase the uptake of nitrogen by the plant. Arbuscular mycorrhizal fungi (show as grass roots on the left) do not provide that advantage to their host.
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Adélie penguin population in Antarctica threatened by climate change

Climate change in Antarctica, cooling in some places and warming in others, is causing a dramatic shift in the population of Adélie penguins, according to a paper published online June...

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Protein in, ammonia out

Holstein dairy cows are in a naturally ventilated barn. The cows are in a losse-housing barn type. The bedding is made out of wheat straw.Ammonia gas packs quite the smelly punch. In small doses, it's what makes smelling salts so effective. But high levels of ammonia can be a health hazard and a pollutant.

Country pledges overshoot Paris temperature limit

Global greenhouse gas emissions as implied by INDCs compared to no-policy baseline, current-policy and 2°C scenarios. (Figure 1 from paper).Pledges made for the Paris agreement on climate change last winter would lead to global temperature rise of 2.6 to 3.1°C by the end of the century, according to a...

Crucial peatlands carbon-sink vulnerable to rising sea levels

Crucial peatlands carbon-sink vulnerable to rising sea levels.Crucial peatlands carbon-sink vulnerable to rising sea levels, research shows

Night-time light pollution causes spring to come early

Human use of artificial light is causing Spring to come at least a week early in the UK, researchers at the University of Exeter in Cornwall have found.

NASA sees heavy rain in Arabian Sea tropical cyclone

On June 29, GPM showed Tropical Cyclone 02A had a few powerful convective thunderstorms southwest of the center of circulation were dropping rain at the extreme rate of over 209 mm (8.2 inches) per hour.Tropical Cyclone 02A in the Arabian Sea east of Oman has been weakening and has become a tropical depression. The Global Precipitation Measurement or GPM mission core satellite analyzed the...

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Wind-blown Antarctic sea ice helps drive ocean circulation

Ocean waters circulate globally, rising in some regions and sinking in others.Antarctic sea ice is constantly on the move as powerful winds blow it away from the coast and out toward the open ocean. A new study shows how that ice...

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From fire breaks to fire hazards

Climate change and human activities threaten the natural state of peat bogs, such as this Alberta peatland that served as a research station.The peat bogs of the world, once waterlogged repositories of dead moss, are being converted into fuel-packed fire hazards that can burn for months and generate deadly smoke, warns...

Beach replenishment helps protect against storm erosion during El Niño

Torrey Pines State Beach experienced some of the most extensive erosion in San Diego County during El NiñoA team of researchers at Scripps Institution of Oceanography at the University of California San Diego compared sand levels on several San Diego beaches during the last seven winters. The...

Sea star death triggers ecological domino effect

A new study by Simon Fraser University marine ecologists Jessica Schultz, Ryan Cloutier and Isabelle Côté has discovered that a mass mortality of sea stars resulted in a domino effect...

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