Climate change by numbers

As countries try to hammer out a response to climate change at the COP28 talks in Dubai, here are some key figures about how fossil fuels have warmed our world.

Nations rally behind renewables at COP28 climate talks

Nearly 120 nations pledged to triple the world's renewable energy within seven years at UN climate talks Saturday as the United States pushed to crank up nuclear capacity and slash methane emissions.

US leads call to triple nuclear power at COP28

More than 20 nations including the United States called for a tripling of nuclear energy to drive down emissions on Saturday as world leaders assembled for a second day at UN climate talks in Dubai.

The big emitters: the United States

The United States, the world's second largest emitter of greenhouse gases, has pledged to halve its emissions by 2030 compared to 2005 levels—but so far is failing to stay on target, analysts say.

Facilitating learning chemistry with conceptual modeling

A team of researchers and teachers from the University of Twente have developed a novel teaching method that uses conceptual modeling to facilitate learning and foster creativity in classrooms of chemical science and engineering ...

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