It will be the 24th leap second since 1972, keeping clocks in sync with Earth’s rotation.
Dipping into the world of secondhand furniture and recycled clothes, they want to set a ‘socially responsible’ example for their son and reduce their environmental ‘footprint.’
250 million years ago, rising greenhouse-gas levels set off catastrophic changes.
‘Transition initiatives,’ begun in Britain, aim to empower people to tackle effects of climate change and decline of oil.
Global warming may have accelerated the irreversible loss of ice shelves that are thousands of years old, say scientists.
Researchers track China’s plume of pollution. What effect did Olympic hiatus have?