A historic decision over a new runway for Heathrow is close. And as airports across the UK unveil new expansion plans the growth of aviation will become a fierce battleground between environmentalists and big business.
Like Will Smith, who in the new film I Am Legend wakes up to find himself the last man alive in a world of zombies, am I now the only person left on the planet who finds Barack Obama a little bit dull? By Armando Iannucci
It's one of the most fashionable ideas to save the planet from global warming: buying up tropical rainforest to save it from destruction. Gordon Brown has even appointed the millionaire founder of one such charity, Johan Eliasch, as his special adviser on deforestation. By Juliette Jowit
Mystery surrounds last week's air foray into Syrian territory. The Observer's Foreign Affairs Editor attempts to unravel the truth behind Operation Orchard and allegations of nuclear subterfuge. By Peter Beaumont
Exhaustion and combat stress are besieging US troops in Iraq as they battle with a new type of warfare. Some even rely on Red Bull to get through the day. As desertions and absences increase, the military is struggling to cope with the crisis. By Peter Beaumont
Finding out which companies are truly eco-friendly can be tricky. Many are keen to assert a 'green' agenda by peppering annual reports with buzz words such as 'environmental' and 'sustainable'. By Harriet Meyer
The cost of protecting London and the south-east from flooding will be at least £4bn as sea levels rise and the south-east coast sinks over the next century, a report for the Environment Agency has warned. By Juliette Jowit