Bioenergy

Canadian Think Tank Denies CO2 Global Warming

Climate change is not linked to industrial emissions of greenhouse gases, and rises in carbon dioxide could be beneficial, according to the Canadian Fraser Institute.

VANCOUVER, British Columbia, CA, 2001-11-21 [SolarAccess.com] In ‘Global Warming: A Guide to the Science,’ the think tank says most of the greenhouse effect arises from water vapour in the air and clouds, with minor contributions from gases such as carbon dioxide and methane. Temperatures at the surface of the earth, measured by thermometers at locations around the globe, rose by 0.5°C to 0.6°C over the last 100 years. “Since approximately 80% of the rise in levels of carbon dioxide during the 1900’s occurred after the initial major rise in temperature, the increase in carbon dioxide cannot have caused the bulk of the past century’s rise in temperature,” says co-author Sallie Baliunas, astrophysicist at the Harvard-Smithsonian Centre for Astrophysics. “Most of the warming must have been natural.” “What is even more unsettling is the fact that the primary impact of the greenhouse effect of added carbon dioxide is in the lower atmosphere (rather than on the surface) but accurate measurements of that layer of air by U.S. National Oceanic & Atmospheric Administration satellites over the last 22 years have not shown any hint of global warming,” she adds. “In other words, the whole idea of carbon dioxide causing global warming just does not add up.” “In the case of recent fears of anthropogenic carbon dioxide, science indicates that, at most, a little warming and, certainly, better plant growth will result from the projected future increase of carbon dioxide content in the air,” but Baliunas makes no reference to the consequences that global warming may have on sea level rises affecting seaboard states and oceanic islands.