Some big banks do little more than pay lip service to environmental issues. HSBC likes to think of itself as different.

THE Mekong river, snaking its way through the heart of South-East Asia, has long sustained the world’s biggest and most productive inland fishery, supplying protein for around 65m mainly poor peopl

PROTECTING the air, let alone improving it, is a challenge. America was reminded of that last month, as courts handed federal regulators two setbacks in as many weeks.

visible sort, into electricity. But not very well yet

Energy technology: Cheaper and better solar-powered electric lights promise to do away with kerosene-fuelled lanterns

Automotive technology: Driverless cars promise to reduce road accidents, ease congestion and revolutionise transport

AS THE pace of climate change accelerates, energy experts have been scrambling to find ways to limit greenhouse-gas emissions through engineering means.

POLITICAL revolutionaries turn the world upside down. Scientific ones more often turn it inside out.

A looming drought is manageable. Long-term changes to the monsoon might be catastrophic

“THE quieter the evening, the more you hear it,” says Wilfried Bockholt, mayor of Niebüll in North Friesland. He mimics the sound of a 55-metre-long rotor whirling round a windmill’s mast.