Toasted, Roasted and Grilled. - Lagarde

IMF chief Christine Legard has added her voice to the call for urgent action on climate change - and growing inequality.

"As I've said before, if we don't do anything about climate change now, in 50 years' time we will be toasted, roasted and grilled."

Both climate change and inequality were "two key issues" that would drive us to either utopia or dystopia, Lagarde stated. "If we don't address those two issues — of climate change and growing inequalities — we will be moving towards a dark 50 years from now," she said.

Legard chose a conference on future investment held in Riyadh, Saudi Arabia, to deliver her remarks. She was somewhat countered by Amin Nasser, CEO of Saudi Aramco, who observed, perhaps ironically, that oil isn't going anywhere anytime soon. 

"Alternatives, electric cars and renewables, are definitely gaining market share, making a lot of progress and we are witnessing that," he said. "However, it will be decades before they take a major share of the global energy supply."