Vanishing Arctic sea ice. Dogged weather systems over Greenland. Far-flung surface ice melting on the massive island. 'Blocking-high' pressure systems spawn most of the warming that melts Greenland surface ice, Rutgers study says

These dramatic trends and global sea-level rise are linked, according to a study coauthored by Jennifer Francis, a research professor in Rutgers University's Department of Marine and Coastal Sciences.

During Greenland summers, melting Arctic sea ice favors stronger and more frequent "blocking-high" pressure systems, which spin clockwise, stay largely in place and can block cold, dry Canadian air from reaching the island. The highs tend to enhance the flow of warm, moist air over Greenland, contributing to increased extreme heat events and surface ice melting, according to the study.

The formation of a distinct pattern of sea surface temperatures in the middle of the North Pacific Ocean can predict an increased chance of summer heat waves in the eastern half of the U.S. up to 50 days in advance.

The pattern is a contrast of warmer-than-average water coming up against cooler-than-average seas. When it appears, the odds that extreme heat will strike during a particular week -- or even on a particular day -- can more than triple, depending on how well-formed the pattern is.

In Norfolk, Virginia, an East Coast city that’s home to the world’s largest naval station and important seaports, catastrophic flooding could damage more than homes and roads. A new study from Sandia National Laboratories assesses how much the city, its region and the nation would suffer in damages to national assets and lost economic activity if it does nothing to address rising sea levels.

In partnership with the City of Norfolk’s Resilience Office and 100 Resilient Cities(100RC), pioneered by The Rockefeller Foundation, Sandia analyzed the risk to important assets, quantified their value and helped Norfolk prioritize the most effective ways to stay resilient in a natural or manmade disaster.

The impact humans have made on Earth in terms of how we produce and consume resources has formed a 'striking new pattern' in the planet's global energy flow, according to researchers from the University of Leicester.

The research suggests that Earth is now characterised by a geologically unprecedented pattern of global energy flow that is pervasively influenced by humans -- and which is necessary for maintaining the complexity of modern human societies.

The new study, published in the journal Earth's Future, is led by Professors Mark Williams and Jan Zalasiewicz of the University of Leicester's Department of Geology working with an international team of scholars.

New research can help water managers along the Rio Grande make wise decisions about how to best use the flow of a river vital for drinking water, agriculture and aquatic habitat. These studies also show how conditions from the prolonged drought in the West have affected the Rio Grande watershed.

The Rio Grande forms the world’s longest river border between two countries as it flows between Texas and Mexico, where it is known as the Rio Bravo. The river runs through three states in the U.S., beginning in southern Colorado and flowing through New Mexico and Texas before it forms the border with Mexico.

Parts of the Rio Grande are designated as wild and scenic, but most of the river is controlled and passes through several dam and reservoir systems during its 1,896 mile journey to the Gulf of Mexico. The river is managed through a complex system of compacts, treaties, and agreements that determine when and how much water is released along the river’s length.

Scientists around the world have slammed Australia’s decision to slash its climate research programme — raising concerns about knock-on effects on developing countries.

Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO) is shifting its research focus to efforts to adapt to and mitigate the effects of global warming rather than understanding climate change through fundamental research, CSIRO chief executive Larry Marshall announced last month.

“The loss of much of this capability with the impending cuts is a real blow for climate research throughout the region.”

The repeated storms which battered Europe's Atlantic coastline during the winter of 2013/14 were the most energetic in almost seven decades, new research has shown.

And they were part of a growing trend in stormy conditions which scientists say has the potential to dramatically change the equilibrium state of beaches along the western side of the continent, leading to permanent changes in beach gradient, coastal alignment and nearshore bar position.

In a study accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union, researchers compared modelled and measured data from sites across Scotland, Ireland, England, France, Portugal, Spain and Morocco, and showed the extreme weather conditions were the most energetic since at least 1948.

Rising temperatures worldwide are changing not only weather systems, but - just as importantly - the distribution of water around the globe, according to a study published today (March 14, 2016) in the journal, "Scientific Reports."

Analysis of more than 40 years of water samples archived at the Hubbard Brook Experimental Forest (HBEF) in New Hampshire tells a vivid tale of how the sources of precipitation have changed. Over the years, there has been a dramatic increase, especially during the winter, of the amount of water that originated far to the north.

Two unexpected and shocking events have left heads swimming about the fate of President Obama’s signature initiative on climate change, the Clean Power Plan, which aims to replace many coal-fired power plants — the largest source of greenhouse gas emissions in the United States — with cleaner sources of energy.

Last Tuesday, the U.S. Supreme Court issued a stay on the Clean Power Plan until the litigation against it is finally resolved, suspending implementation of the plan for the foreseeable future. The vote was 5-4, along the customary ideological lines, and it led to great concern, bordering on quiet despair, among proponents of the plan. who now believed that the Supreme Court would ultimately strike it down. Opponents of the plan, including the coal industry, rejoiced.
 

The court’s order blocking Obama’s Clean Power Plan provides an opportunity for the U.S. to show other nations it has a flexible approach to cutting emissions, David Victor writes.

Low Emissions Zones have their place in cleaning up the UK's worst air pollution hotspots, writes Richard Howard. But we also need to adopt fiscal measures to encourage a shift away from diesel vehicles, at once delivering cleaner air, increased tax revenues, and lower carbon emissions.

If we are to clean up air pollution in London and the rest of the UK, then Government needs to recognise that diesel is the primary cause of the problem, and to promote a shift away from diesel to alternatives.

There is an air pollution crisis taking place in London and many of the UK's other major cities.