Diplomacy between cities, counties, states and regions is critical to ensuring that diplomatic doors between countries are left open throughout changing political cycles at the national level. Such efforts are more important now than ever, especially for the climate crisis. As we head into COP27 with the message “from ambition to implementation,” cities have a critical role to play as the venues where many of the policies discussed at international climate negotiations will play out.

This article, by Sharon Guynup, originally appeared on Mongabay.

In August, I traveled aboard the icebreaker Kinfish to the Svalbard archipelago, north of the Arctic Circle. Invited to the bridge as we cruised fjords near the 80^th parallel, I was transfixed by towering blue glacier walls, but was confused by the map displayed on one of the ship’s screens. It showed our vessel sailing across a non-navigable frozen sheet.

States are sometimes overlooked as drivers of climate action, yet some of them have been true leaders that bring significant influence. In Washington State, for instance, a strong coalition has worked to develop a smart, foundational climate policy for decarbonization in all sectors of the state’s economy.

“The food system is complex; it is not just about food production,” said Florence Odiwuor, a Kenyan Southern Voices for Peacebuilding Scholar, at a recent event on the role of food security systems in sustainable peacebuilding in Africa hosted by the Wilson Center’s Africa Program. As a lecturer at the School of Agriculture, Natural Resources, and Environmental Studies at Rongo University, Odiwour observed that given the food system’s interconnectedness with issues like education, gender, finance, and labor, “disruptions or failures in the [food] system have caused a lot of conflict in [Kenya].”

The looming 27^th meeting of the Conference of the Parties (COP) of the UNFCCC in Egypt in November 2022 brings with it a moment of truth for many nations. They must intensify decarbonization efforts to meet their share of global commitments agreed upon at the Paris COP. Yet, the already significant challenges also have intensified. Disruptions of oil and gas flows caused by Russia’s invasion of Ukraine are slowing a global green energy transition—at least in the short-term. The depth of the crisis means countries are even scrambling to keep coal-powered plants working.

Climate security is an essential conceptual framework to understand the global interplay of biophysical and socioeconomic forces that threaten our planet. Indeed, it is so important that new currents of science, politics, and advocacy make refining definitions a necessity.

Hydropower is the largest source of low-carbon electricity in the world today. And its benefits are needed more than ever. The International Energy Agency estimates that we will need to double the amount of installed hydropower capacity—which stands today at around 1360 gigawatts worldwide—in order to limit the rise in average global temperatures to 1.5 degrees Celsius above pre-industrial levels.

Meeting the immense impacts of climate change will require strong “top-down” policies to reduce emissions and remove carbon from the atmosphere, as well as building resilience in the face of climate stresses and shocks. As communities and governments undertake rapid and fundamental transformation of sectors and systems—energy, transportation, buildings and even green spaces—the need for governments to develop strategies that drive innovation and technological solutions becomes more urgent and essential.