EghtesadOnline: Today, most companies disclose the environmental impact of their operations, even when they’re not required to by law. But corporate climate policies, and how hard companies fight for them, may be even more influential than carbon dioxide emissions.

EghtesadOnline: Former U.S. Vice President Al Gore, a leading voice in the fight against climate change, and Donald Trump, who at one point called it a hoax, met on Monday in what Gore called a "productive" session.

EghtesadOnline: Leaders from the world's leading economies broke with U.S. President Donald Trump on climate policy at a G20 summit on Saturday, in a rare public admission of disagreement and blow to multilateral cooperation.