Spray insulation is commonly used to fill spaces in unfinished walls, attics and floors. Most of it is made from polyurethane and “closed foam cells,” which means it forms a nearly impenetrable barrier. The material is widely recognized as a highly efficient insulator, effectively reducing heat transfer.
How are coral reefs faring around the world?
Aluminum can be toxic if ingested in large amounts, but there is no evidence that it causes health problems through the kinds of minor skin or airborne exposure one might receive from a window frame. As such, aluminum window frames are certainly healthy alternatives to fiberglass or vinyl,
Indeed, the glaciers for which Glacier National Park is named are melting away due to increasing global temperatures in recent decades, attributable most likely to global warming. A century ago, Grinnell Glacier, once the park’s largest, covered almost 440 acres. Today it has shrunk to just a quarter of that size.
cut flowers are one of the world’s most pesticide-intensive crops. Flower workers, of which there are roughly 200,000 worldwide, pay the heaviest price.
Why are so many environmentalists against nuclear power when it’s a reliable way to get emissions–free power 24×7 (unlike solar and wind)?
When forest fires occur, they can release significant amounts of gases and soot particles (known as “particulate matter”) into the atmosphere, where wind currents can then carry them great distances across major water bodies and national boundaries.
Asking guests to re-use towels and keep their sheets for more than one night are just a few of the many ways the lodging industry has been rapidly “greening up” operations in recent years. According to the Green Hotels Association (GHA), a trade group of hotels, motels and inns across the U.S. that is committed to sustainable business practices,
According to some experts, construction and demolition projects together contribute as much as 60 percent of all solid waste in the U.S., so the building industry is certainly ripe for some increased recycling efforts. According to the Sourcebook for Green and Sustainable Building
Biodiesel is one of the cleanest burning alternative fuels available today. Diesel engines that run on biodiesel emit substantially less carbon monoxide and soot compared to engines that run on regular diesel fuel.
