Two pictures of Beijing taken 24 hours apart show the Chinese capital engulfed by smog earlier this month (Image: Rex)

Climate change is the challenge of our generation

Consumers and businesses will have to be more energy-efficient and switch to alternatives to fossil fuels [From 4 December} The Paris climate change summit will conclude at the end of next week. It aims to reach an international agreement on limiting emissions of carbon dioxide and other greenhouse gases that are contributing to global warming.