When the National Oceanic and Atmospheric Association (NOAA) declared the beginning of an El Niño event on June 8, 2023, the recurring climate pattern featured in headlines all over the world as media outlets sought to cover its anticipated impacts.

A recent Water @ Wilson event –“The Significance of the Coming El Niño: Understanding the Science and Preparing for its Impacts”—brought together experts at the Wilson Center to explain the complex science behind El Niño and explore its regional implications. The speakers also surveyed the policy tools at our disposal to prepare for its significant climate effects.

News about global climate impacts that elevate mortality, wreak weather havoc, and create massive displacement is inescapable. And those are just the stories that make the headlines. Droughts in Africa are estimated to impact 250 million people and displace 700 million more by 2030. Climate impacts brought on by El Niño are devastating the food supply chain, exacerbating Guatemala’s struggle to reduce childhood malnutrition.

The impacts of a changing climate touch every region of the globe, but they are acutely felt by people in Uganda, where floods, droughts, and shifting rainfall patterns disrupt agricultural productivity, livelihoods, and the health and well-being of millions of people. According to the ND-GAIN index, Uganda is the 13^th most vulnerable nation in the world, and action there is urgently needed to better prepare for and adapt to climate change’s impacts.

Links between water and conflict seem to crop up everywhere one looks these days. The Horn of Africa will soon face a sixth consecutive failed rainy season in 2023—its worst drought on record. Not only is this drought a consequence of global climate change, but it has also led to widespread food shortages and local civil conflicts. And over the past year in Ukraine, Russian troops have directly damaged that nation’s already vulnerable water systems, including pipelines, pumping stations, and treatment facilities. These repeated attacks on water infrastructure have not only undermined local livelihoods in Ukraine, but they have also polluted surface waters and threatened biodiversity.

Already facing water stress, much of Latin America (such as the western slopes of the Andes and the dry corridor of Central America) is projected to experience intensified periods of drought in the coming decades, further complicating development efforts in the region. At the same time, heavy floods are the most common natural disaster in the region, disrupting life for countless people. According to the World Bank, in Latin America and the Caribbean alone roughly $14 billion per year is required to meet the 2030 water and sanitation targets of the United Nations Sustainable Development Goals. Typically, investments at this scale have been made by governments and large firms that invest in traditional infrastructure such as dams. But with ever-growing development needs and increased understanding of the impacts of climate change, Nature-based Solutions (NBS) are gaining momentum as a new way of incorporating environmental considerations into development responses.

As the climate crisis continues to worsen, climate finance remains a fraction of what is needed. The Climate Policy Initiative estimates that $579 billion was spent on average on climate finance in 2017/18. This includes domestic and international investment from both the public and private sectors towards climate mitigation and adaptation actions. Of this amount, only $30 billion—five percent—was allocated for climate adaptation. This amount stands in stark contrast to $180 billion, which the Global Commission on Adaptation estimates is needed every year to build resilience to current and future climate impacts. This catastrophic funding gap is intensifying climate security threats and elevating the vulnerability of people across the world, particularly in coastal urban centers.

“It is in Brazil’s interest to climate-proof the nation,” said Wilson Center Senior Fellow Sherri Goodman during a recent International Military Council on Climate and Security (IMCCS) event. Referencing a new IMCCS  report, Climate and Security in Brazil, Goodman, who is also Secretary General for the IMCCS, said that Brazilian leaders ought to develop counter-deforestation and climate plans as critical elements of the national security agenda.

Climate change will upend the 21^st century world order. It will redefine how we live and work, and change the systems of production, trade, economics, and finance. Even now, in the midst of a global pandemic, it is clear that climate change will be the defining issue of this century. In fact, COVID-19 has only underscored the inadequacy of our responses to global crises and heightened the urgency of this call to action. 21^st century diplomacy will have to raise climate ambition, shape the transformative systems change needed, and promote and facilitate new modes of multilateral collaboration.