Lima Climate March

Developing nations must cut carbon emissions even if they feel it is unfair, US Secretary of State John Kerry said on Thursday, warning of climate "tragedy" if quarrelling derails a global pact.

Thousands of people marched in central Lima against the abuse of Earth's resources Wednesday, urging ministers haggling over a world climate deal to ensure a global switch to 100-percent clean energy by 2050.

Green groups hoped for a big turnout at a protest in Lima today aimed at heaping pressure on ministers haggling over a post-2020 deal to curb carbon emissions.

Developing nations must cut carbon emissions even if they feel it is unfair, US Secretary of State John Kerry said on Thursday, warning of climate "tragedy" if quarrelling derails a global pact.

Thousands of people marched in central Lima against the abuse of Earth's resources Wednesday, urging ministers haggling over a world climate deal to ensure a global switch to 100-percent clean energy by 2050.

Green groups hoped for a big turnout at a protest in Lima today aimed at heaping pressure on ministers haggling over a post-2020 deal to curb carbon emissions.