The EU may scrap plans for legislation on air pollution and waste in a drive to boost the economy.

US Secretary of State John Kerry says the world is "on a course leading to tragedy", as long-running issues threaten a deal between countries at UN climate talks in Lima.

Landing on a comet, laser fusion and a working tractor beam are among the physics breakthroughs of the year, as chosen by a leading magazine.

The first colour image from the Rosetta spacecraft shows that Comet 67P is even more dark and monochrome than expected.