If approached correctly, climate change could be an opportunity for the global economy, UN climate chief Christiana Figueres told DW.
The leaders of Brazil and the US have pledged to work towards visa-free travel and increased use of renewable energy. Brazil's Dilma Rousseff labeled the talks a "relaunch" of relations following the NSA spying scandal.
Pope Francis has landed in Ecuador's capital Quito, kicking off a three-nation tour in his native continent. During his visit, the pope is expected to focus on issues such as poverty and the environment.
The head of the Catholic Church is poised to focus on ecology in release of a key document. Activists around the world say it's already spurring action - among the faithful, and beyond. It also has its detractors.
A new study indicates humans are driving an unprecedented wave of species extinction. Scientists say it will take a concerted global conservation effort to prevent what would otherwise be inevitable.