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The color of light and our daily rhythms
April 18, 2015 08:00 AM - PLOS Biology via EurekAlert!

Research by scientists at The University of Manchester has revealed that the colour of light has a major impact on how the brain clock measures time of day and on how the animals' physiology and behavior adjust accordingly. The study, for the first time, provides a neuronal mechanism for how our internal clock can measure changes in light colour that accompany dawn and dusk. 

In research publishing on April 17th in the Open Access journal PLOS Biology, the researchers looked at the change in light around dawn and dusk to analyze whether colour could be used to determine time of day. Besides the well-known changes in light intensity that occur as the sun rises and sets, the scientists found that during twilight light is reliably bluer than during the day.

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Five Years and Counting: Gulf Wildlife in the Aftermath of the Deepwater Horizon Disaster
April 17, 2015 09:37 AM - National Wildlife Federation

Five years after the Deepwater Horizon rig exploded, sending oil into the Gulf of Mexico for 87 days, wildlife are still struggling. The Gulf, with its deep waters, sandy beaches, lush wetlands and coral reefs, is a vast system that supports more than 15,000 species of wildlife – fish, birds, marine mammals and many, many others.

A new report from the National Wildlife Federation looks at how 20 types of wildlife that depend on a healthy Gulf are faring in the wake of the BP oil spill. The full extent of the spill’s impacts may take years or even decades to unfold, but Five Years & Counting: Gulf Wildlife in the Aftermath of the Deepwater Horizon Disaster examines what the science tells us so far.

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SPOTLIGHT

California's Water Situation is Beyond an Emergency

Roy L Hales & Robert Lundahl

Originally Published on the ECOreport

California’s water situation is beyond an emergency, according to Healdsburg resident Dave Howard. He and his sons returned from a “ski trip” in Northern California.

“The peaks are as bald as they normally are in August! Where’s the snow pack that’s supposed to be providing us water all summer? It’s zero folks. There is nothing there,” he said.

They proceeded on to Northstar ski resort. On a normal year there are more than a hundred runs. The temperatures are low enough and Northstar is making it’s own snow. Dave dropped his sons off, to go ahead.

“They did one run, then called me and said, ‘Dad we’re done. This is stupid. There is only one run worth doing and everyone is on it. This is not even worth spending any time on,” said Dave.

He added, “Northstar is scraping for their lives. Where’s their Spring skiing? It doesn’t exist. There in March, they’ve had a bad season already and its not going to get any better. There’s no hope on the horizon for those guys.”

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Monoculture Threatens Margaritas

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To read the full post and comment, visit the ENN Community Blog

15 Practical Tips for Sustainable Travel

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With more than a billion people traveling each year, how can we see the world without destroying it? The answer is sustainable travel or simply put, traveling responsibly.
To read the full post and comment, visit the ENN Community Blog

How Urbanization Affects the Environment

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By 2050 it is predicted that up to 85% of the world will be urbanized and it is important this development is managed carefully so the detrimental effects are minimized. How will this affect wildlife when in the United States 275 species are already endangered as a result of urbanization?
To read the full post and comment, visit the ENN Community Blog

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