Three decades. That is how much time is left to decarbonize the world’s energy systems to limit global warming to 1.5°C, according to the latest Intergovernmental Panel on Climate Change (IPCC) report. Achieving this feat requires renewable energy systems be deployed at an unprecedented speed and scale. While daunting, however, the good news is that this transformation may not cost as much as many expected just a decade ago, thanks to rapid cost declines in renewable energy technologies.

As COP27 draws to a close, the conference is proving to be a disappointment for environmental advocates focused on eliminating the planet’s number one emitter: coal-fired power.

Yet only a year ago, at the UN climate talks in Glasgow, it felt different. At that time, one could be forgiven for getting excited about the prospects for phasing out coal fired power. Countries had committed to ending its use. Tantalizingly, coalitions of international partners and multilateral development institutions also introduced mechanisms that could help finance closures at scale.

“The effects of climate change can begin in the womb,” said Sarah Barnes, the Project Director of the Maternal Health Initiative at the Wilson Center at a recent event on the impact of climate change on maternal and newborn health outcomes, hosted by the Wilson Center and UNFPA. It is a connection that “[makes] it imperative that climate change and maternal and newborn health leaders work together to tackle climate change and improve maternal and newborn health outcomes, globally.”

As the world’s attention has turned in November 2022 to the UN COP 27 climate change conference, another important global milestone is also drawing attention. Today, November 15, 2022, the global population is predicted to reach 8 billion. By 2050, it will be 9.7 billion.

Climate impacts are growing more frequent and severe as global temperatures rise. Weather-related disasters have seen a five-fold increase over the past half-century. In many cases, these calamities are already testing the adaptation capabilities of vulnerable communities across the world. If emissions follow the trajectory set by current country targets, the chance of temporarily overshooting the 1.5 °C target in the next five years is 48 percent.

This failure would have implications for the global economy and international security. Yet despite the fact that climate change shapes geopolitics, climate risk itself has rarely been featured in international geopolitics and diplomacy.

Which nations are most at risk of catastrophic outcomes due to intensifying ecological threats? The third edition of the Institute for Economics & Peace (IEP)’s Ecological Threat Report (ETR)—released on October 20, 2022— applies a lens of societal resilience to predict the hotspots most likely to suffer from instability and conflict in the future, and provides projections of ongoing trends to 2050.