Japan signed an agreement on Tuesday to buy allowances from Poland to emit greenhouse gas, helping Tokyo achieve its goals under the Kyoto Protocol, Japan's trade ministry said.

The deal, signed in Warsaw, is the fourth for the Japanese government following similar agreements with Hungary, Ukraine and the Czech Republic.

New Zealand's emissions scheme faces a turbulent road before it starts in 2009, bedevilled by hundreds of last-minute amendments, fierce criticism from industry and a national election within less than a month.

Human-induced emissions are on the rise, says a new study

In a recent study, the Global Carbon Project stated that carbon emissions from human activity have grown nearly four times faster than in the 1990s. The emissions grew at 3.5 per cent per year between 2000 and 2007 as against 0.9 per cent per year between 1990 and 1999.

Climate taxes, not cap and trade markets alone, will lead to the vast technological changes the world's energy system needs to fight global warming, a top US economist said on Thursday.

NEW DELHI: India's raucous democracy, endemic poverty and soaring economic ambition make curbs on greenhouse gas emissions a hard sell, even as global pressure mounts on the government to do more on climate change.

While there is no consensus on the exact definition of "terrorism", the word is typically used to describe ideologically motivated acts of violence with the intention to intimidate governments or civilians. Acts supposedly meeting these criteria and committed in the name of environmental causes are described as "eco-terrorism" by law enforcement agencies such as the FBI.

A wall of heat and sulphur from a towering furnace stoked to 1,500 degrees Celsius hits onlookers at POSCO's Pohang plant in South Korea amid the din of coal and iron ore rattling into vats of molten metal.

Pohang's oldest furnace, with a 35-year history, helped POSCO grow into the world's No.4 steel giant.