Oxfam Global Ambassador and Hollywood actor Gael Garcia Bernal stars in a new on-line advertisement made by international agency Oxfam urging people to join the new "tck tck tck" climate change campaign.

"There are less than 100 days remaining for the world to agree on a deal to tackle the biggest threat facing humanity," Bernal said. "Every one of us is now responsible to pressure our leaders to be bold and decisive."

Bernal, who was born in Mexico and has starred in six Academy Award-nominated films including Babel and The Motorcycle Diaries, is working with Oxfam to highlight the impact of climate change on poor people. "We can stop the worst scenarios of climate change but only if we each do our bit - and that includes taking political action. The time is ticking away," he said.

Oxfam International executive director Jeremy Hobbs said "we are delighted that Gael has lent himself to this role at such an important time. This advertisement aims to add to the growing pressure on politicians to do the right thing.

"Oxfam believes that the world's governments can strike a deal in Copenhagen - but the detail is all important and will spell the difference between success and failure. A deal must be ambitious enough to keep us below 2°C warming and it must put the interests of poor people at its very heart," Hobbs said.

The tck tck tck campaign (http://tcktcktck.org/) is run by an alliance of trade unions, faith groups and non-governmental organizations including Oxfam.

The advertisement is available on the Oxfam YouTube site at http://www.youtube.com/watch?v=yVDH3YJN3rc

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