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? ¿ìè¶ÌÊÓÆµ
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 ¿ìè¶ÌÊÓÆµ