New York

UN climate summit asks for 'specific actions' to hit Paris targets

Secretary-General António Guterres has asked countries to come to the UN summit with specific plans for how they intend to cut carbon emissions in line with the most recent science, which says global greenhouse gas emissions must fall 45% by 2030 and reach net zero by 2050 to avoid the worst impacts of climate change.

Climate Change

Why 2020 is a key year for climate action

The UN climate report found that limiting warming to 1.5 degrees Celsius (or 2.7 degrees Fahrenheit) this century is still technically possible. But to keep that possibility alive, the world would have to cut its global greenhouse gas emissions by a whopping 45% from 2010 levels by 2030.

History

Remembering how America experienced 9/11

America is at a turning point in which the events of 9/11 are shifting from memory to history. In his book, "The Only Plane in the Sky," author Garrett Graff compiles a comprehensive oral history timeline of Sept. 11, 2001, told via brief diary-like accounts.

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