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Britain will become a net importer of wheat for the first time in a decade this year because of bad weather, the National Farmers' Union has said. The prolonged cold weather is expected to impact this autumn's harvest The average yield fell from 7.8 tonnes a hectare to 6.7 tonnes last summer. Looking ahead to the 2013 harvest, farmers had only managed to get three quarters of the planned wheat planted this year, so the UK was already 25% down on potential production.

The Brazilian Chamber of Deputies has approved controversial legislation that eases rules on how much land farmers must preserve as forest. Brazil's powerful farmers' lobby argues that the changes will promote sustainable food production. But environmentalists say the new forest code will be a disaster and lead to further destruction of the Amazon.

Certain products, such as bags, that are solar paneled to power ipods and lap, could help reduce our energy consumption.

WASHINGTON -- Taking climate change efforts into his own hands, President Barack Obama is proposing sweeping steps to limit heat-trapping pollution from coal-fired power plants and to boost renewable energy production on federal property.

How is the changing global population affecting people's daily lives? With the UN set to announce that there are now seven billion people on the planet, BBC News reporters spoke to seven people from around the world to hear their stories. Production: Anna-Marie Lever, Fiona Crack, John Galliver, Emily Jones.