Finding a Consensus by Degree
Today, almost 200 nations have united in a global agreement on global change. However, the efforts of a few can still undermine the hopes of the many.
After the 1992 Kyoto Protocol, it took almost a quarter of a century to achieve the Paris accord. . For the first time, it obligates both advanced nations as well as emerging and developing economies into reducing greenhouse-gas emissions.
Long-term challenges


