While protesters demand immediate cuts to fossil fuel emissions and a radical overhaul of the world's energy supplies, annual United Nations climate-change talks are focusing on an arcane corner of the global carbon market.
Energy and environment ministers at the COP25 meeting in Madrid today are discussing market mechanisms that would prod nations and governments to rein in carbon dioxide emissions. They work by issuing credits for projects that reduce pollution or setting limits for polluters, who must pay if they emit more.
The U.S. fought to include markets in the talks and will help design the system, even though President Donald Trump wants to quit the Paris climate-change accord. Still, it's not the sort of agenda likely to quell the passions of protesters.
The European Union, meanwhile, is gearing up for the world's most ambitious policy against climate change that will require radically overhauling the economy. At a Brussels summit next week, leaders will commit to cutting net greenhouse-gas emissions to zero by 2050.
Scientists say the need for action is increasingly urgent. Global temperatures are on track to rise 3 to 5 degrees Celsius by the end of the century, according to the World Meteorological Organization.
That would mark the quickest shift in the climate since the last ice age ended.
— Reed Landberg
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