Thousands flee Chad's capital as violence erupts between government and rebel forces
Israel suffers its first suicide bomb in more than a year
Overspending leaves a £1bn hole in Defra's budget
China's worst weather in decades leaves millions with little or no power
Obesity treatments are costing the NHS around £1bn a year
Troubles continue for Northern Rock as Olivant pulls out of bidding race
London introduces the world's largest low-emission zone
New guidelines advise civil servants to avoid phrases directly linking terrorism with Islam
Scientists create genetically modified mice to help develop new flu drugs
Memory loss may be treatable, brain surgeons discover
Organisers agree to make music festivals more eco-friendly
Designs for a hypersonic plane may make day trips to Australia possible - just not for another 25 years
Summary: Less pollution means clearer skies
Forecast: Expect more bluster as MPs' finances come under scrutiny
Edmund Gordon
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