May 21 2014

Longer growing season does not yield growth increase for trees and shrubs

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As the earth's temperatures rise, some have speculated that trees and shrubs in the colder climates might experience and increase in growth as a result of the extended growing season. "Not so," says a recent study authored by a University of Washington biology and applied mathematics postdoctoral student. Her study demonstrates that bushes achieve less yearly growth when cold winter temperatures are interrupted by warm spurts that trigger growth.
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May 15 2014

Patience, self-control and delayed gratification

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How long would you wait for six grapes? A chimpanzee will wait more than two minutes to eat six grapes, but a black lemur would rather eat two grapes now than wait any longer than 15 seconds for a bigger serving.
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May 14 2014

Go out and play!

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New research confirms the health benefits associated with outdoor play for children. New research from the University of Bristol shows that while most children spend the largest amount of their after-school time indoors either alone or with their parents, hours spent outdoors with friends has the greatest positive affect on a child's level of physical activity. The correlation works out like this: children get an extra 17 minutes of physical activity for every hour of time spent outdoors.
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May 12 2014

A greener barbecue

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Memorial Day, the unofficial start of summer and outdoor cooking season is right around the corner. Unfortunately, outdoor cooking is too often connected with a tremendous amount of waste. Make this year's summer the "summer of green" with these eco-friendly alternatives for a low-impact summer barbecue:
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May 09 2014

Says the human to the polar bear: “I am not your lunch!”

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As the climate continues to change, the polar bear's range moves south as the planet continues to warm. This means that we should expect more human encounters with the polar bear. This can be a problem for scientists working in these regions. Enter the Canadian bear expert, Andy McMullen, a Canadian 35 year veteran who teaches Dartmouth scientists about bear behavior before they embark upon studies in bear country.
Categories: News
May 08 2014

Predicting red tide blooms with ESP

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Red tide poisoning is an aquatic phenomenon caused by a rapid increase/accumulation in the water column of reddish colored algal bloom (large concentrations of aquatic microorganisms) comprising a few species of toxic dinoflagellates. Forecasting the phenomenon has been critical for coastal communities. This year though, WHOI is introducing a new tool called Environmental Sample Processors (ESP) to measure bloom concentration and associative toxins for real-time reporting to land based researchers.
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May 05 2014

New hopes for getting the lead out of solar

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Solar energy is arguably our most viable low cost energy source. It is forever sustainable and easily captured and converted. But now the technology may have taken yet another leap forward. To date the foundational technology behind photovoltaics was a structure called perovskite, which has been made with lead. Using tin instead of lead perovskite as the harvester of light, a team of Northwestern University researchers has created a new solar cell with "good efficiency". This good efficiency solar cell is low-cost, environmentally friendly and can be easily made using "bench" chemistry -- no fancy equipment or hazardous materials.
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May 02 2014

Local residents chronicle lake water quality

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Long-term water quality trends in Midwestern lakes yield good news in the form of little change in water clarity in the regions 3,000 lakes. But what makes this news unique is that the data to make this determination was collected by non-scientists and local residents from the area’s towns and villages.
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Apr 30 2014

Dissolving shells on the West Coast

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Evidence now indicates that acidity of West Coast continental shelf waters is dissolving the shells of tiny free-swimming marine snails, called pteropods, the major food source for pink salmon, mackerel and herring. Funded by NOAA, the study estimates the percentage of pteropods in this region with dissolving shells due to ocean acidification has doubled in the nearshore habitat since the pre-industrial era and is on track to triple by 2050 when coastal waters become 70 percent more corrosive than in the pre-industrial era due to human-caused ocean acidification.
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Apr 25 2014

Who came first: the farmer or the hunter-gatherer?

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This is the question being asked by researchers from Uppsala and Stockholm Universities. And now with a genomic analysis of eleven Stone Age human remains from Scandinavia the researchers have concluded that the Stone Age farmers assimilated local hunter-gatherers who were historically lower in numbers than the farmers. There has been much debate as to when the transition between hunting-gathering and farming began. Now with DNA science being used on human material, scientists have a whole new way to learn about this sliver of time.
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