The more stringent environmental quality specifications for oil products worldwide are tending to step up energy use and, consequently, CO2 emissions at refineries. In Brazil, for example, the stipulated reduction in the sulfur content of diesel and gasoline between 2002 and 2009 should increase the energy use of Brazil's refining industry by around 30%, with effects on its CO2 emissions.

• Thailand has proposed that it will ban all alcohol advertising, outraging media executives who say the ban would hurt the industry and do little to curb alcohol abuse. • At least three

Pointless: A US federal appeals court recently heard arguments on a five-year-old battle over whether the US Environmental Protection Agency (EPA) has the authority to regulate carbon dioxide (CO2)

ExxonMobil has emitted five per cent of CO₂ pollutant since 1882

How plants survive during night