Scientists have warned that as CO2 levels in the atmosphere rise an increase in Earth's temperature by even two degrees could lead to catastrophic effects across the world. But how can such a tiny, measurable change in one factor lead to...

AP Television

IJmuiden, Netherlands - March 30,
2011
1. Wide of smoke billowing out of Corus st
eel plant
2. Wide of plant with smoke billowin
g from...