US to commit to 17 per cent emissions cut from 2005 levels at climate summit next month.

Officials says banning the weapon would jeopardise the country's "defence needs".

Prosecutors say four men tried to supply weapons and money to Lebanese group.

Indian PM's state visit to Washington brings agreements on security and climate change.

US president says he will announce decision on war strategy and troop deployment "shortly".

White House indicates ninth war council could be last before decision on troops.

PM says strong economic relationship needed to underpin strategic partnership.

Manmohan Singh arrives in Washington on four-day trip aiming to better ties.

Manmohan Singh begins visit to US for talks on nuclear energy cooperation.

Brazil president declares support for Tehran's quest for "peaceful nuclear energy".

Plan to propose curbs on greenhouse gases raises hopes for Copenhagen climate summit.

Researchers identify 17,650 species living near the bottom of the world's oceans.

Hundreds of Brazilians have protested against a visit by the Iranian president.

The dollars, cents, reais and rials of the relationship.

Toxic mixture of rubbish, sewage and fertlizer is destroying vitally important lake.