By studying African lake sediments from the past 20,000 years, scientists are learning more about abrupt climate shifts, advancing their understanding of changing weather patterns. In a recent paper published in Nature Geoscience, co-author on an NAU assistant professor Nicholas McKay analyzes core samples from Lake Bosumtwi in Ghana. The isolated lake was formed by a meteor and sits like a bowl on the landscape giving scientists a clear view of environmental changes.
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Putting a value on forests
The day I first set foot in a tropical rainforest, in Malaysia in the early 1980s, I experienced something profound. From the echoes of gibbons calling from the canopy in the early morning mist to the iridescent flash of a bird in a beam of sunlight, rainforests are a sensory delight as well as a marvel to anyone’s scientific curiosity.
As I subsequently watched these forests dwindle and, in some cases, vanish, I have felt an equally profound sense of loss and a nagging guilt that I was somehow part of the story, because I had done little to remedy the situation.
The best-and worst-places to drive your electric car
For those tired of winter, you’re not alone. Electric cars hate the cold, too. Researchers have conducted the first investigation into how electric vehicles fare in different U.S. climates. The verdict: Electric car buyers in the chilly Midwest and sizzling Southwest get less bang for their buck, where poor energy efficiency and coal power plants unite to turn electric vehicles into bigger polluters. Scientists at Carnegie Mellon University (CMU) in Pittsburgh, Pennsylvania, began their research by pulling public data from FleetCarma, a company that tracks vehicle performance among car fleets operated by governments and businesses.
We need to focus on health and well-being, not economic growth
The financial cost of the diseases of modern civilization is almost double the budget of the National Health Service, writes Jules Pretty, while the economy has grown past the point of greatest satisfaction. Our over-riding priority should be to move to greener, healthier, more sustainable and satisfying ways of life.
A substantial financial dividend could be released by a greener and healthier economy. Instead of encouraging material growth and consumption, we should consume in a way that is environmentally sustainable.
ENERGY STAR now certifies Clothes Dryers
For the first time, ENERGY STAR is certifying clothes dryers. Starting this past President’s Day weekend, 45 models of ENERGY STAR certified dryers, from five different manufacturers, were available in stores nationwide. ENERGY STAR certified dryers include gas, electric and compact models, and incorporate innovative energy saving technologies, such as moisture sensors that detect when clothes are dry and automatically shut the dryer off. Dryers use more energy than any other appliance in the home, and since 80 percent of American homes own dryers, the savings potential is huge. With over 5 million dryers being soil last year, the new certified clothes dryers represent a great new opportunity for energy savings in the U.S.
Center for Biological Diversity launches new Environmental Health Program
The Center for Biological Diversity this week launched its new Environmental Health program, greatly expanding its capacity to protect wildlife, people and the environment from pesticides, rodenticides, lead, mining, industrial pollution, and air and water pollution.
“The future of people is deeply intertwined with the fate of all the other species that evolved beside us,” said Lori Ann Burd, the program’s director. “This new program will work to protect biodiversity and human health from toxic substances while promoting a deep understanding of the connection between the health of people and imperiled species.”