Cross-country attacks against the climate policy are coming from think tanks that belong to a vast U.S.-based libertarian network.

Controversies surrounding Sultan Ahmed Al Jaber have underscored the role of reputation management in climate diplomacy.

Major food and agriculture companies have sent 340 representatives to Dubai for the climate summit.

The fossil fuel industry has a huge presence this year's UN climate talks — including many US lawmakers who count the sector among their biggest donors.