TechnologyBack to the Future: Does physics of Marty's time travel add up? Today is 21 October 2015 – the date Marty McFly and Doc Brown travel to in Back to the Future Part II. Can we reconcile the films with reality? 51¶¯Âþ
Earth14 ways the UK has backtracked on climate pledges this year A year of policy reversals and cuts has destroyed the country's reputation for leading the way on tackling climate change and left it facing legal action 51¶¯Âþ