Managing Director of the International Monetary Fund (IMF) Christine Lagarde has urged countries to "get real" on meeting the commitment of Paris Agreement on climate change, highlighting the need for effective carbon pricing.
At a panel discussion held by the Centre for Global Development, Lagarde on Friday said that global warming is an "existential threat", and called on countries not to waste the "small window of opportunity" to take the measures needed to combat the problem.
The IMF chief said that carbon pricing, charging for the carbon content of fossil fuels or their emissions, is "the most effective mitigation instrument" for climate change and it provides incentives to reduce energy consumption, use cleaner fuels, mobilize private finance and provide revenues to support sustainable and inclusive growth, Xinhua news agency reported.
In 2015, nearly 200 countries agreed on the landmark Paris Agreement on climate change, to cut greenhouse gas emissions in a way to keep a global temperature rise this century well below 2 degrees Celsius above pre-industrial levels.
US President Donald Trump announced his decision to withdraw from the agreement in 2017, prompting a strong backlash domestically and abroad.
The goal of the Paris Agreement would require cutting emissions by roughly a third by 2030 and a global carbon price of around 70 dollars per tonne, whereas the current global average carbon price is only 2 dollars per tonne, according to a newly-released IMF paper.
Noting that carbon pricing can be politically difficult, the IMF chief encouraged countries to gradually phase in carbon pricing and smartly communicate policies.
Another panelist, Ngozi Okonjo-Iweala, Nigeria's former Finance Minister, also stressed the importance of communicating with the people.
Okonjo-Iweala said that governments should explain policies clearly so that people at the bottom end of the ladder understand that they are not going to get hurt and resources will be used for their benefit.
"It is difficult to understate the urgency of this task as the window for containing global warming to manageable levels is closing rapidly," Lagarde said in a blog that she co-authored.
"Action is required by everyone, every institution, every country. Everyone can make a difference!"
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