Human-caused global warming is visible in the air, water and melting ice and destined to get much worse in the future, an authoritative world report will warn.

Scientists in the US are deadlocked over the severity of the next sunspot cycle, which could produce powerful solar storms that can disrupt communication systems on Earth.

The North Pole could be free of ice during the summer by 2040 thanks to the dramatic effects of global warming, a new scientific study has warned.

It has been 2,000 years and possibly much longer since the Earth has run such a fever.

HEATWAVES are likely to become more severe, frequent and long lasting this century, scientists said yesterday.

Hackers have broken into some of the world’s most powerful computer systems in recent weeks in an apparently coordinated cyber attack targeting research and academic institutions.