BBC News: From burping cows and food miles to greenhouse gasses

http://www.bbc.co.uk/news/science-environment-46366551

BBC News: Hot weather killed ‘up to half’ of young Christmas trees

http://www.bbc.co.uk/news/uk-wales-46301490

BBC News: Climate change: Can 12 billion tonnes of carbon be sucked from the air?

http://www.bbc.co.uk/news/science-environment-46345280