Can agriculture and the climate fix their ‘unhappy marriage’ in 2018?

After René Castro-Salazar attended the first U.N.-led climate talks in Berlin in 1985 as Costa Rica’s environment and energy minister, he tried to talk about agriculture and climate change - but few wanted to join the conversation.

“There was always opposition - and we couldn’t understand why,” said Castro, now assistant director-general at the United Nations’ Food and Agriculture Organization (FAO).