"In the 1950s, before some climate scientists had targeted carbon dioxide as a dangerous chemical, scientist Harrison Brown, one of Obama science czar Eric Holdren's acknowledged gurus, called for a global increase in carbon dioxide, precisely because of its perceived greenhouse gas effects." Source: http://www.wnd.com/index.php?fa=PAGE.view&pageId=118304

In his book, "The Challenge of Man's Future", Brown writes, "The earth's atmosphere contains only a minute concentration – about 0.03 percent. It has been demonstrated that a tripling of carbon-dioxide concentration in the air will approximately double the growth rates of tomatoes, alfalfa, and sugar beets."

What Brown was suggesting was an effective answer to world hunger.

Brown continues, "controlled atmospheres enriched in carbon dioxide would be an essential component of enormous greenhouses built to grow plants in nutrient-rich solutions."

"His conclusion? Pump more carbon dioxide into the atmosphere in all regions of the world."

It is understood that greater CO2 levels will encourage more rapid plant growth. At the same time, it is understood that rapid plant growth accelerates the conversion of CO2 to O2.

After a thorough study in how to purposefully increase CO2 on Earth, it was determined that such a project would not be achievable. "There are between 18 and 20 tons of carbon dioxide over every acre of the earth's surface," Brown notes on page 142. "In order to double the amount of CO2 in the atmosphere, at least 500 billion tons of coal would have to be burned – an amount six times greater than that which has been consumed during ALL of human history (combined)."

Click HERE and HERE for references on Harrison Brown