Climate Change Proceeds Down Worrisome Path
New Trend Updates from Vital Signs Online
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.
Total global fish production, including both wild catch and aquaculture, rose to about 157 million tons in 2007, the most recent year with data, up from 153 million tons in 2006. Reaching a record high as the industry continues to grow, nearly half of the fish produced for human consumption came from aquaculture.
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