We have underestimated the importance of trees. They are not merely pleasant sources of shade but a potentially major answer to some of our most pressing environmental problems. We take them for granted, but they are a near miracle. In a bit of natural alchemy called photosynthesis, for example, trees turn one of the seemingly most insubstantial things of all — sunlight — into food for insects, wildlife and people, and use it to create shade, beauty and wood for fuel, furniture and homes.Humans have...read more»
A cheap plastic that removes carbon dioxide (CO2) from the atmosphere? “Yes,” says a team of chemists at the University of Southern California’s (USC) Loker Hydrocarbon Research Institute, led by Nobel Prize winner George Olah. Science Now reports on their work with an inexpensive polymer called polyethylenimine or PEI....read more»
Artificial Christmas trees are made of PVC (polyvinyl chloride), a durable and lightweight plastic used in numerous applications in today's world. As a raw material, PVC is used in water and sewage pipes and electrical lines. In housing, PVC can be found in sidings, floorings and furniture. Agricultural and industrial purposes include tents, greenhouse coverings, automobile parts and electrical appliances. Consumer products include food wraps, synthetic leather and stationary; and medical applications include...read more»
Do you know how to choose
the best Christmas tree? Read
our handy buyer's guide for tips to find your perfect tree!
Don't let fire destroy your family's holidays. Learn more about safety and your Christmas tree from fire safety experts.
Allergic to your Christmas tree? The holidays should bring you more than watery eyes and a stuffy nose.