Switch off the lights and get your candles ready because Earth Hour happens tomorrow, Saturday, March 25, from 8:30 to 9:30 in your local time-zone. During the event, WWF invites you and over a billion people worldwide to turn off your lights in support of a global environmental cause. In honour... more

Just flick a switch and let there be light (or boiled water, or Blu-ray, or a night’s charge for your smartphone):  A lifestyle that would have seemed like magic to many people even 100 years ago is now something we pretty much take for granted. In all your daily hustle (and... more

In labs around the world, plastic bags of green water are quietly basking in sunlight. The water’s filled with what’s commonly known as ‘pond scum’. Its official name is green algae- a tiny, unicellular organism found in ponds, rivers and oceans worldwide. It looks slimy,... more