Sérgio Abranches

Emissions regulations effectively reduce acid rain says a new long-term study of acidic rainfall by researchers of the University of Illinois. The frequency and intensity of acid rain decreases as emissions fall. More »

Sergio Abranches (for The Great Energy Challenge)

When president Barack Obama arrived in Copenhagen for the Summit of chiefs of government, Congress was still discussing a comprehensive climate and energy bill. Expectations were set too high for COP15. Most delegates and environmentalists hoped that Obama would lead the way towards a global climate agreement. EPA administrator Lisa Jackson explained on a side event her agency would soon start regulating carbon emissions. More »