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Global Climate Change Policy

Climate protester
smoke stacks emitting greenhouse gases

“We can no longer delay or do the bare minimum to address climate change.  This is a global, existential crisis, and we’ll all suffer—we’ll all suffer the consequences if we fail.”  

—President Joe Biden, February 19, 2021 

2.1 The Issue

Developed or industrialized countries, including the United States, have been releasing greenhouse gases such as carbon dioxide into the atmosphere for more than a century by burning fossil fuels for power, heat, transport, and industrial activity. In recent decades, rapid economic growth in major developing countries such as Brazil, China, and India has led to significant increases in their greenhouse gas emissions as well. Greenhouse gases trap the sun’s heat close to the earth, causing the planet to warm. Some of these gases occur naturally, which is why the earth is warm enough to sustain life as we know it. Increasing the concentration of these gases in the atmosphere via man-made emissions is causing more heat to be trapped, raising average global temperatures—a phenomenon known as global warming—which leads to changes in the planet’s climate.

Climate change poses risks not only to the environment but also to the security and livelihood of people in the United States and around the world. These effects include rising sea levels, greater heat extremes, more intense precipitation events, deeper droughts, stronger storms, and bigger wildfires. If current trends continue, growing plentiful and affordable food for a rising global population could become more difficult; populations in low-lying areas—including many of the world’s major cities—could be forced to move; and more extreme weather could threaten the health of billions of people.

Rising greenhouse gas emissions could be addressed through policy at both domestic and international levels, but if countries with significant emissions fail to act, the overall level of warming will increase. Multiple international agreements on climate change have been developed over the years, including the 2015 Paris Agreement, which aims to reduce emissions globally to well below 2°C and, given the grave risks, to strive for 1.5°C. However, reducing greenhouse gas emissions worldwide will not be easy. Modern economies depend on fossil fuels. Output from alternative sources such as solar and wind energy is growing but not enough to fully replace fossil fuels yet, and currently available measures to increase energy efficiency are costly and time-consuming. Climate change, moreover, is a difficult issue for policymakers. The questions of how to cut emissions and prepare for climate repercussions, and who should bear the costs of doing so, have few simple answers.

Decision Point

NSC Meeting

Text

A major international climate summit is approaching. At the UN climate summit in Paris in 2015, world leaders pledged to reduce or limit their countries’ emissions and to monitor progress toward these goals. However, a new scientific report warns that governments will need to make urgent and unprecedented changes beyond their commitments under the Paris Agreement to avoid serious and potentially irreversible environmental consequences. Despite this alarming information, countries have taken relatively few additional steps toward meeting ambitious targets and in some cases have even retreated from their climate commitments to the Paris Agreement.

Most heads of governments, including the president of the United States, are attending the upcoming summit, and all eyes are on Washington to see if the United States will present a new U.S. negotiating strategy in light of the report. The president has called a meeting of the National Security Council (NSC) to decide if and how the United States will propose creating a more robust climate agreement that can prevent the most devastating consequences of climate change. In their deliberations, NSC members will need to bear in mind the potential results of climate change, the potential effects of proposed measures to mitigate it, and the need to secure international support for the U.S. approach from both developed and developing countries.

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