Usa & China Big Polluters

To maintain a legitimate shot at avoiding warming of greater than 2 °C,
. . . greenhouse-gas emissions must be cut 40% to 70% by midcentury and
. . . reduced to zero by 2100.

The United States Is Far and Away the Leader in Carbon Dioxide Emissions.
. . . The effects of atmospheric carbon linger for centuries,
. . . so historical emissions totals,
. . . are relevant context,
. . . for the global climate policy debate.

China, now the world’s leading annual emitter, bears equal responsibility,
. . . along with other high-emitting nations like India.

China, meanwhile, argues that because the U.S. and other wealthy nations.
. . . have contributed a disproportionate share,
. . . of the greenhouse gases already accumulated in the atmosphere,
. . . they should be held more accountable,
. . . for emissions cuts over the next several decades.

11-15-2014 Source:  USA & China Big Polluters