Climate Change Proceeds Down Worrisome Path
Global temperature dropped slightly in 2008, but two other climate
indicators—emissions of carbon dioxide (CO2) and its concentration in
Earth’s atmosphere—continued their worrisome upward trends. The
concentration of carbon dioxide increased to 385 parts per million (ppm),
extending the past decade’s trend of rising 1.9 ppm per year on
average.1 (See Figure 1.) Meanwhile, some 31,794 million tons of CO2
from fossil fuels were emitted—up 2 percent from the previous year
despite high oil prices and the economic downturn of 2008, which reduced
fossil fuel demand significantly.2 (See Figure 2.) The International
Energy Agency predicts that in 2009 emissions will drop by 3 percent,
the largest decline in 40 years, owing mostly to the recession but also
to national climate action policies.3 For full access to the complete trend and its associated charts, log in to Vital Signs or: Subscribe to all vital signs trends
OR
Purchase This Trend Annual subscribers to Vital Signs Online have full access to all our trends and charts. © 2008 | Worldwatch Institute To subscribe or visit go to: http://vitalsigns.worldwatch.org |