The Guardian

China has overtaken the US as the biggest producer of carbon dioxide, a development that will increase anxiety about its role in driving man-made global warming and will add to pressure on the world's politicians to reach an agreement on climate change that includes the Chinese economy.

·Emergency government meets in Ramallah· Immediate US aid for West Bank and Gaza. By Rory McCarthy in Ramallah and Simon Tisdall

Lawyers are to make fresh moves to overturn the conviction of a Libyan jailed for the Lockerbie bombing after new evidence emerged. By Severin Carrell

PM committed troops despite chaos fears. Bush 'offered to fight without UK'. By Nicholas Watt

ExxonMobil criticised Greenpeace, the Kyoto treaty and the European carbon trading system yesterday but insisted it was not a "climate change denier" and said it wanted to play a constructive role in countering global warming. By Terry Macalister

BAE gave Prince Bandar of Saudi Arabia an airliner as part of Britain's al-Yamamah arms deal, and the arms firm is still paying the expenses of flying it, the Guardian can disclose. By David Leigh and Rob Evans

· Browne refuses to say if secret payments continue · Lib Dem leader calls for investigation. By Richard Norton-Taylor, David Leigh and Rob Evans

Flash floods in Britain are likely to be the biggest immediate problem caused by climate change, the government's chief scientist warned today. By Matthew Weaver

The UK has just experienced the warmest spring on record, with temperatures 0.2C higher than the previous record in 1945, according to new Met Office figures. Analysts also predict a hot summer, with July and August possible record breakers. By James Randerson

Tony Blair has issued a stark warning to fellow world leaders ahead of this week's G8 summit on climate change, telling them it would be unforgivable if they failed to agree on ways to tackle global warming. By Larry Elliott and Matthew Taylor

The privatisation of prime beachfront along the increasingly chic Athenian riviera has prompted a local mayor to go on hunger strike - the most dramatic step yet in the battle to win free access to the shores of Greece. By Helena Smith

· Victims of Diego Garcia evictions 'back in days' · Foreign Office considers appealing to the Lords. ByJulian Borger,

Rupert Murdoch has promised to make his media empire carbon-neutral by 2010. He's not the first tycoon to boast about his green plans - but will it actually make any difference? Mark Lynas investigates

As his new environmental disaster documentary screened at Cannes, Leonardo DiCaprio defended his international lifestyle and lashed out at critics of Al Gore, who last year premiered his own film on global warming, An Inconvenient Truth, at the festival. By Charlotte Higgins

Jo Wilding's unembedded reports from Fallujah brought home the horror of the American assault on the city. But when she wasn't blogging, she was wearing stilts and trying to cheer up Iraq's traumatised children. She tells Emine Saner why she risked her life for total strangers

Luis Posada Carriles is a terrorist - but an anti-Castro one, so as far as America is concerned he's all right. By Stephen Kinzer

Britain and Germany lead effort to get US, China and India to agree to carbon trading scheme. By David Adam and Patrick Wintour

Daughter's anger as new details emerge in body parts scandal., By Martin Wainwright and James Randerson

· Foreign secretary warns of battle for scarce resources · UN vote on Zimbabwe taking environment chair. By Julian Borger

· Increased greenhouse gas from trees, plants and soil · World may warm up more quickly than predicted. By David Adam

Members of an indigenous tribe from the Peruvian Amazon sued the oil giant Occidental Petroleum yesterday in California's superior court, alleging that the company knowingly put the health of the Achuar people at risk and damaged their habitat. By Dan Glaister

The Stern Review has already set out the facts: we can carry on as we are, leading to a global economic collapse, or we can try to halt the worst ravages of climate change by stabilising CO2 at 450 parts per million (ppm) in the atmosphere, or we can aim to stabilise CO2 at 500-550 ppm.

The Howard Government has issued very confusing, misleading or in some cases totally phoney statements about greenhouse gases and initiatives which the Government has taken to combat it.

· 2.51m take-offs scheduled worldwide this month · UK most popular country for international flights. By David Adam

Depleted uranium, which is used in armour-piercing ammunition, causes widespread damage to DNA which could lead to lung cancer, according to a study of the metal's effects on human lung cells. By James Randerson

What if dealing with climate change meant more than a flick of a switch? Would our friends in the industrialized world think differently if the effects of climate change were worse than extended summer months and the arrival of exotic species? By Desmond Tutu

26 April 2007The world's largest wave farm planned off the UK coast has secured sufficient funding for the project to go ahead as early as next year, subject to planning permission.

From Hitler to Pinochet and beyond, history shows there are certain steps that any would-be dictator must take to destroy constitutional freedoms. And, argues Naomi Wolf, George Bush and his administration seem to be taking them all

· Planting may worsen warming, say scientists · Environmental gestures 'useless' outside tropics. By Alok Jha,

The numbers are damning. Within 15 years 98% of the rainforests of Indonesia and Malaysia will be gone, little more than a footnote in history. By Ian MacKinnon