PARIS • Tens of thousands of people around the world are expected to rally this weekend to put pressure on the Paris climate talks, which will open under tight security on the heels of France's worst terror attacks.

Some 2,000 events of all sizes are planned in about 100 nations in a bid to push leaders to craft a pact keeping Earth from overheating.

Large marches are planned in Manila, Mexico City, Los Angeles, Washington and New York.

But following the Nov 13 terror attacks in Paris that killed 130 people, the authorities in the French capital banned citizens' marches scheduled for tomorrow - the day before the summit officially opens - and for Dec 12, the day after it closes.

Activists have instead planned to link hands tomorrow in Paris creating a 2km human chain along the cancelled march's route, while also passing in front of the Bataclan concert hall, where the worst terrorist violence occurred.

France said on Wednesday it will deploy nearly 11,000 police for the climate summit.

Interior Minister Bernard Cazeneuve said 8,000 police and gendarmes would be posted to carry out border checks and 2,800 deployed at the conference venue at Le Bourget, north of Paris.

He said 120,000 police and troops had already been mobilised across France since the attacks.

AGENCE FRANCE-PRESSE