Over the past year, for instance, China and Brazil have put out their own
pledges for curbing emissions.
Not exact matches
For example, President Obama
pledged to
curb U.S. carbon dioxide
emissions by 26 % to 28 % by 2025.
For now, though, the question at hand is whether the
emissions -
curbing pledges that the United States, China, India, Brazil and dozens of other countries made at the 2009 Copenhagen climate summit are robust enough.
Many Warsaw delegates say the 2015 accord looks likely to be a patchwork of national
pledges for curbing greenhouse gas
emissions, anchored in domestic legislation, after Copenhagen failed to agree a sweeping treaty built on international law.
For the first time, every country in the world has
pledged to
curb emissions, strengthen resilience and join in common cause to take common climate action.
The lack of a shared long - term goal
for cutting
emissions represents a mixed result
for President Bush, who had
pledged last year to bring together most of the world's biggest economic powers — later called «major economies» by the White House — and produce a shared long - term goal
for curbing greenhouse - gas
emissions by the end of 2008.
This month China suspended price adjustments
for fuel as a way to
curb automobile exhaust and it has
pledged to peak carbon
emissions around 2030, by which time it aims to derive 20 percent of the energy it uses from clean sources.
A dispute over whether China would ever be prepared to accept effective monitoring of its
pledges to cut
emissions overshadowed a United Nations climate conference last December in Copenhagen at which nations failed to agree on a timetable
for a global treaty to
curb emissions.
By the mid-2000s, General Electric, Walmart and other companies were
pledging to
curb the
emission of greenhouse gases, according to Spencer Weart, author of «The Discovery of Global Warming» and former director of the Center
for History of Physics at the American Institute of Physics.