With the growing trend towards environmental awareness, green printing is fast becoming a top option for businesses that need printed promotional materials. Here are the top five ways for you to make sure that your advertising and promotional campaigns don't hurt Mother Nature.

There are so many definitions of what a green job is, that it's now getting to the point where it's difficult to know what a green job is. And the difficulty is increased by the lack of clear and agreed upon definitions of a green company and the categories of green products or services (is nuclear clean? is "clean coal" really clean?).

By examining 800,000-year-old polar ice, scientists increasingly are learning how the climate has changed since the last ice melt and that carbon dioxide has become more abundant in Earth's atmosphere.

For two decades, French scientist Jérôme Chappellaz has been examining ice cores collected from deep inside the polar ice caps of Greenland and Antarctica. His studies on the interconnecting air spaces of old snow -- or firn air -- in the ice cores show that the roughly 40 percent increase of carbon dioxide in the atmosphere since the Earth's last deglaciation can be attributed in large part to changes in the circulation and biological activity of the oceanic waters surrounding Antarctica.

Future green cars would run by just putting a tree in the gas tank, at least that's what researchers mean as they look at forest biomass as raw materials for the development of green biofuels and chemicals.

Dr. In-Gyu Choi, associate professor in the department of forest science at Seoul National University, who will coordinate a session at the 2010 IUFRO World Congress, said that forest biomass is renewable, abundant and carbon-neutral. Its importance as a future source of green energy and green chemicals should not be ignored.

The US wind power industry is facing huge problems that have led analysts to forecast a 60 percent drop in installations this year. This will be the first year since 2004 that the industry will not grow. The main reason for this set back is that we have nearly run out of high wind areas with easy access to transmission. This combined with extremely low prices for natural gas have led the industry back to the drawing board.