Watch live polar bear webcams to aid climate study

Researchers studying the effects of climate change are asking for volunteers to watch polar bears on live webcams, Apple reveals how many times governments around the world have asked for information about its users and India launches its first unmanned mission to Mars.

BBC Click's Marc Cieslak looks at these and other tech news stories.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.