Germany is widely seen as a world leader in the fight against climate change. Thanks to its investments in renewable power, wind and solar energy provide a third of its electricity, more than double the US share. Germany’s goal to lower carbon-dioxide emissions 40 percent by 2020 is significantly more ambitious than that of Europe as a whole or the ...

As New Delhi suffers through a surge in the most harmful type of smog—a toxic stew that makes India’s capital one of the most polluted in the world—Beijing offers lessons in how another troubled city made progress clearing the air. China, which for more than a decade has been the world’s biggest emitter of carbon dioxide, has made its capital ...

If he doesn’t already, Narendra Modi should start believing in Santa Claus. For the Prime Minister, whose party faces an important poll in Modi’s home state next month, the one-notch rating bump to Baa2 by Moody’s Investors Service is an early Christmas present. More importantly, the rationale for the upgrade cites two of his most destabilizing measures of the past ...