After days of talks in the first-ever gathering devoted to ditching the  fossil fuels that are heating the planet, ministers, climate advocates and financial experts from more than 50 countries have agreed on a set of outcomes. Held in the Colombian coastal city of Santa Marta , the conference laid the groundwork for continued cooperation between countries that want to move to a clean-energy future, and created momentum for more talks on an issue that is politically and economically sensitive.