Guardian: It may be a hard notion to accept after a week that has seen the nation paralysed by snow and ice. Nevertheless, meteorologists are adamant that our world is still getting warmer. Indeed, many now believe that 2010 may turn out to be the hottest year on record. Britain may be shivering, the Met Office may have issued emergency weather warnings for the entire country and hundreds of trains and flights may have been cancelled, but our future is destined to be a hot and sticky one. And …