Climate Week in New York

A woman dusts the seats in the general assembly hall at United Nations headquarters in New York. Leaders from around the world are gathering for a high-level climate change summit Photograph: Justin Lane/EPA

The US president, Barack Obama, departs after speaking at the UN climate summit Photograph: Jeff Zelevansky/EPA

The Chinese president, Hu Jintao, addresses the UN. He promised a target for reducing the rate of China's emissions, but failed to deliver major measures that could reinvigorate stalling talks Photograph: Don Emmert/AFP/Getty Images

Djimon Hounsou makes a speech to delegates. The Oscar-nominated actor read from Carl Sagan's book, Pale Blue Dot Photograph: Rick Gershon/Getty Images

The chairman of the Intergovernmental Panel on Climate Change (IPCC), Rajendra Pachauri, addresses the UN Photograph: Emmanuel Dunand/AFP/Getty Images

Former vice-president of the United States and maker of global warming documentary An Inconvenient Truth, Al Gore (centre), and Prince Willem-Alexander (right) of the Netherlands listen to speakers Photograph: Justin Lane/EPA

Director Franny Armstrong (right) and producer Lizzie Gillett arrive for the world premiere of the film The Age of Stupid in New York on 21 September, screened during Climate Week Photograph: EMMANUEL DUNAND/AFP/Getty Images

Actor Gillian Anderson arrives for The Age of Stupid premiere Photograph: Emmanuel Dunand/AFP/Getty Images

Musician Moby performs at The Age of Stupid premiere, which was a "green carpet" event Photograph: FilmMagic Inc

The event was also attended by the former UN secretary-general Kofi Annan Photograph: FilmMagic Inc

The UK secretary of state for energy and climate change, Ed Miliband, speaks at the premiere. The story in the film is told in the voice of an ageing archivist - played by British actor Pete Postlethwaite - looking back from the year 2055 on a world devastated by climate catastrophe Photograph: FilmMagic.com

The Yes Men - holding plans for their SurvivaBall - attend the premiere. The group of pranksters yesterday distributed phoney copies of the New York Post, with headlines warning: "Global warming kills" and "World leaders slip on UN summit slope" Photograph: Janette Pellegrini/WireImage.com

Protesters dressed as sleeping Canadian prime minister, Stephen Harper, (right) and opposition leader, Michael Ignatieff, in Vancouver, British Columbia. The protest is part of a national demonstrations that are part of Climate Week Photograph: ANDY CLARK/REUTERS

Demonstrators in San Francisco march in the streets in protest against the US Waxman-Markey climate and energy bill, which they say was "written by big oil and energy corporations". Dozens of protesters from the group Mobilisation for Climate Justice held a demonstration outside of the offices of Chevron and US Senator Barbara Boxer.

• This caption was amended Friday 25 September 2009. An earlier version indicated MCJ backed the bill. This has been corrected. Photograph: Justin Sullivan/Getty Images North America

The Climate Week opening ceremony (left-right): Jairam Ramesh, Indian minister of state for environment and forests; Su Wei, director-general of the Climate Change Department of National Development and Reform, People's Republic of China; Todd Stern, special envoy for climate change, US; Connie Hedegaard, minister of climate and energy, Denmark; Anthony Pratt, CEO of Pratt Industries; Paul Dickinson, CEO of Carbon Disclosure Project; Lord Nicholas Stern; Steve Howard, CEO of The Climate Group; Sultan al Jaber, Masdar Initiative; Ban Ki-moon, secretary general, UN; Tim Wirth, president of the United Nations Foundation; Tony Blair; Hugh Jackman, actor; Kumi Naidoo, chair, TckTckTck campaign; Jean Charest, premier of Quebec; Boudewijn Poelmann, chair, Dutch Postcode Lottery; unknown individual; Ed Miliband, UK secretary of state for energy and climate change; Mohamed Nasheed, president of the Maldives; Pierre Ozendo, CEO of Swiss Re America; Shane Robison, executive vice president, HP Photograph: The Climate Group

The UN secretary-general, Ban Ki-moon, speaks during the opening ceremony of Climate Week NY C at the New York public library. The event, an initiative of global non-profit The Climate Group, in partnership with the UN, the government of Denmark, the City of New York, the TckTckTck campaign and the Carbon Disclosure Project, aims to support Ban's call to secure a global climate deal Photograph: EMMANUEL DUNAND/AFP/Getty Images

Su Wei, director-general of the climate change department in China with India's environment minister Jairam Ramesh in New York. Both countries are expected to take centre stage at the climate talks this week Photograph: Ben Hider/Getty Images

Connie Hedegaard, Denmark's minister for climate and energy, speaks during the opening ceremony of Climate Week NY C. On her left is the US special envoy on climate change, Todd Stern, and on the right, former UK prime minister Tony Blair. Hedegaard warned earlier this year that American leadership on climate change will be undermined if the Obama administration does not swiftly pass laws to reduce carbon pollution Photograph: Emmanuel Dunand/AFP/Getty Images

People take part in a mobile phone "wake-up call" in Parliament Square, London, yesterday. The campaigners used their mobile phones to call on Gordon Brown to attend the Copenhagen climate change summit this December Photograph: Matt Dunham/AP

Environmental and human rights activists hold up symbolic alarm clocks in front of the Sacre Coeur in Paris, during a "wake-up call" event. The banner partially obscured in the background reads: "We do not negotiate with climate, we act. Mr Sarkozy, wake up!" Photograph: Thibault Camus/AP

A man reads a fake edition of the New York Post with the headline reading "we're screwed". A group of pranksters called the Yes Men, who first struck a few years ago with bogus copies of the New York Times proclaiming an end to the Iraq war, yesterday distributed phoney copies of the New York Post, with headlines warning: "Global warming kills" and "World leaders slip on UN summit slope" Photograph: Brendan Mcdermid/Reuters

Actor Harrison Ford (right) is joined by Guyana's president, Bharrat Jagdeo, at a news conference in New York. The two men joined business leaders to garner support for forest protection Photograph: Don Emmert/AFP/Getty Images

Connie Hedegaard, Denmark's minister for climate and energy, meets with former US president Bill Clinton Photograph: Shannon Stapleton/Reuters

Thousands of climate change activists gather in Central Park, New York, on Sunday, 20 September 2009, to form a human sculpture in the shape of the Earth, trapped inside an hourglass Photograph: Afton Almaraz/AP

The event, organised by Oxfam as a part of the Tcktcktck campaign, comes as President Obama and other heads of state meet at the United Nations to discuss climate change Photograph: Afton Almaraz/AP