Reducing animal product consumption may be a fairly direct route to reducing one’s greenhouse gas footprint and offers collateral health and environmental benefits.
Affluent individuals tend to have larger carbon footprints than those less fortunate.
450 ppm is a stretch goal and would require average global emissions over the century to drop more than 1/3 below current emissions.
In the scientific community, genuine climate change skeptics are vastly less numerous than those who see sufficient evidence to support immediate action to address climate change.
Reduction of vehicle emissions of carbon — through more efficient vehicles, mass transit, car pooling, cycling, etc. — also reduces all other forms of air pollution associated with vehicle exhaust.
Summary of legislative and regulatory initiatives in Massachusetts as of November 2007.