The announcement in Washington on September 24 that President Xi Jinping is committing China to a national carbon trading system is the latest step in an important partnership between the two biggest carbon emitters in the world.

Shenzhen sits in subtropical south China, where four-fifths of the country’s water resources flow. The monsoon brings heavy rains from April to September; at its peak, Shenzhen’s more than 7 million residents see pouring rain almost every day. So why is this city facing a serious water shortage?

As the world prepares for a pivotal climate conference in Paris this December, countries are offering their national plans to tackle a changing climate. These plans, known as intended nationally determined contributions (INDCs), contain details of what each country is prepared to do as part of a new global climate agreement. While the public focus is often on mitigation – how much countries are willing to reduce emissions, by when, and with what degree of transparency – adaptation to the impacts of climate change demands the same level of attention. In fact, the last round of international climate talks in Lima invited parties to include adaptation in their INDCs.

In March 1999, not long after he was sworn in as the 47^th mayor of Oakland, Jerry Brown called Lesley Estes, the supervisor of the city’s watershed protection program. Brown, who is now California’s governor, wanted the city staffer he called “Creek Lady” to describe the most formidable ideas she had to conserve natural areas, make parks more beautiful, and clean up the city’s waters.

At the launch of A New Climate for Peace, a new report on climate-fragility risks produced for the G7 by a consortium of international partners including the Wilson Center, USAID Deputy Assistant Administrator Christian Holmes called water a common denominator for climate risk.

The discovery of oil in Chad in 1969 did not yield many immediate benefits for a population that would soon be wracked by civil war, but hopes were high by the late 1990s. Chad had largely stabilized, and a new, World Bank-backed project to build a pipeline through Cameroon to the Atlantic Ocean coast was touted as a model for socially and environmentally responsible oil exploitation in developing countries.

The world is more connected than ever before, but also more complex. Big, transnational trends like climate change, urbanization, and migration are changing the calculus of geopolitics, while local-level inequalities persist. “[Change] seems to be spinning around us so fast,” said John Hempelmann, president of the Henry M. Jackson Foundation, which honors the legacy of the late senator from Washington State. How can today’s and tomorrow’s leaders adjust to global trends? [Video Below]