Heat, winds pose enduring menace to burning Northern California

With gusting winds, triple digit temperatures and almost zero chance of rain in Northern California this week, scorching weather poses a persistent threat to firefighters battling out-of-control blazes on parched land, officials said.
"Unfortunately, they're not going to get a break anytime soon," said Brian Hurley, a meteorologist with the National Weather Service's Weather Prediction Center in College Park, Maryland.
"It's pretty doggone hot and dry and it's going to stay that way," Hurley said early Monday.

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Arctic Boreal Vulnerability Experiment Shows Arctic Carbon Cycle is Speeding up

A new NASA-led study using data from the Arctic Boreal Vulnerability Experiment (ABoVE) shows that carbon in Alaska’s North Slope tundra ecosystems spends about 13 percent less time locked in frozen soil than it did 40 years ago. In other words, the carbon cycle there is speeding up — and is now at a pace more characteristic of a North American boreal forest than of the icy Arctic. 

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Beavers Returned to Forest of Dean 400 Years after Being Driven to Extinction

It is expected the return of the pair of Eurasian beavers will help spur greater biodiversity in the 16-acre site near Lydbrook, a village in a steep-sided valley above the River Wye.
Beaver dams create ponds, pools and ditches which will form ideal habitats for various species of birds, insects and small mammals.
It is hoped the structures will slow the descent of water through Greathough Brook, which runs through the densely wooded valley and thereby alleviate the risk of flash flooding.

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Climate Change Made Current European Heatwave more than Twice as Likely, Scientists Conclude

The heatwave across northern Europe has been made twice as likely by climate change, according to an international team of scientists.
Preliminary data collected from stations across the region by the World Weather Attribution (WWA) network confirmed climate scientists’ fears that the heat has been exacerbated by global warming.
Temperatures recorded in the Arctic Circle were “unprecedented”, while further south in the Netherlands, Denmark and Ireland, the odds of the current heatwave more than doubled.

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Air Pollution Linked to Changes in Heart Structure

Air pollution is linked to changes in the structure of the heart of the sort seen in early stages of heart failure, say researchers.
The finding could help explain the increased number of deaths seen in areas with high levels of dirty air. For example, a report last year revealed that people in the UK are 64 times more likely to die from the effect of air pollution than people living in Sweden. Such premature deaths can be linked to a number of causes including respiratory problems, stroke and coronary artery disease.

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Will Atlantic Upheaval Make Future Weather More Chaotic?

The current that ferries water around the Atlantic stabilises the climate for millions. Now it is getting weaker, which could bring more extreme heat waves and floods
THE northern hemisphere is roasting. Greece is battling lethal wildfires, and even the UK’s weather has been so hot and dry that record-breaking fires have broken out in its usually damp climes. In Oman on the Arabian Peninsula, thermometers registered the hottest night on record anywhere on Earth on 28 June: the temperature never fell below 42.6°C.

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What We Should Know About Mangroves?

Mangrove ecosystems are some of the most productive and useful on the planet, but they are largely misunderstood. Mangrove trees — stubborn, shrub-like trees that grow exclusively in coastal waters — are the warriors of the plant kingdom. They thrive in seawater so salty that it would choke the life out of the mightiest terrestrial flora and endure the persistent battering of waves typical of the intertidal regions where they put down roots.

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Hurricanes Are Declining, and That's Bad News

While hurricanes batter coastal regions with destructive wind speeds, study author James Kossin says the speed at which hurricanes track along their paths -- their translational speed -- can also play a role in the damage and devastation they cause. Their movement influences how much rain falls in a given area.
This is especially true as global temperatures increase.

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Could Rising CO2 Levels Take Us Back to the Tropical Climate of Paleogene period?

A new study led by scientists at the University of Bristol has warned that unless we mitigate current levels of carbon dioxide emissions, Western Europe and New Zealand could revert to the hot tropical climate of the early Paleogene period – 56-48 million years ago.
As seen from the ongoing heat wave, the knock-on effects of such extreme warmth include arid land and fires as well as impacts on health and infrastructure.

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Ocean Acidification May Hit Unprecedented Levels

Ocean acidification occurs when CO2 from the atmosphere is absorbed by seawater, resulting in more acidic water with a lower pH, said researchers from the Cardiff University in the UK.
The rapid influx of CO2 in to the oceans is severely threatening marine life, with the shells of some animals already dissolving in the more acidic seawater.

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