posted October 08, 2015 01:51 PM            

"If we collectively chicken out of this we'll all turn into chickens and we'll all be fried, grilled, toasted and roasted," said Lagarde.

Her comments came in a panel discussion involving World Bank President Jim Yong Kim, U.N. climate talks executive secretary Christiana Figueres and economist and climate expert Nicholas Stern.

Lagarde and Kim argued strongly for removing subsidies on fossil fuels that are worth more than $5 trillion a year and on the immediate need for carbon taxes so that the burning of fossil fuels can fund clean energy replacements.

But they both acknowledged it's a big challenge.

"We have been trying to help countries remove fuel subsidies," said Kim, which inevitably means higher prices at the gas pump. "Politicians don't like it when taxi drivers and truck drivers block the streets."

Questioned about whether the world's governments can make the necessary shift to clean energy to prevent catastrophic climate change, Figueres said that while pledges from 146 countries submitted ahead of December's climate talks in Paris are not enough to bring greenhouse gases down to acceptable levels, she believes closing the gap is "entirely doable."

The world's finance ministers and central bankers were beginning to arrive in Lima for the joint annual meetings of the World Bank and IMF that run through Sunday.