Articles, tagged with "methane", page 2

Salvage yards in principle are of great benefit to the environment. They reduce the number of items being stored in landfills and promote recycling through the sale of parts and scrap metals. However it has been recognized that some of these salvage yards...

Should we use alternative energy sources because of concerns about global warming or perhaps because it is morally responsible, or from an economic stance. Global warming has been one of the hot topics discussed in the last couple of years. There is gr...