Environment & Climate Change

Climate change is threatening the network of winter ice roads that connect Canada's remote Northern communities. Airships could provide a sustainable transportation alternative.

The behavior of EV users themselves could play a role in modulating electricity demand and providing needed flexibility in electric grids, said Christine Gschwendtner, Postdoctoral Research Fellow at Harvard Kennedy School’s Belfer Center, during an Energy Policy Seminar.

The geopolitical implications of solar displacing oil as the world’s major source of energy are enormous. Why has the Middle East been a central arena in the “great game” for the past century? Because countries there have been the major suppliers of the oil and gas that powered 20th-century economies. If, over the next decade, photovoltaic cells that capture energy from the sun were to replace a substantial part of the demand for oil and gas, who will the biggest losers be? And even more consequentially: who will be the biggest winner?

The energy transition has made deep-sea mining for critical minerals cost-competitive for the first time, and Chinese companies are champing at the bit to start mining at a commercial scale. The United States and its partners, by contrast, have been caught on the back foot when it comes to China’s stranglehold on the critical mineral supply chain. With the geopolitical rivalry between China and the United States intensifying, many Western observers say the United States can’t afford to lose the scramble for the seabed. 

In an essay for Harvard Kennedy School Magazine, Henry Lee argues the policies China is pursuing to wean itself off reliance on fossil fuels may also benefit its quest for greater energy security.

Surging demand and dizzying price hikes have raised concerns that inadequate metal and mineral supplies may impede the clean energy transition. Given the urgency of reducing fossil fuel use, the science and policy worlds must solve two main challenges: how to ensure the availability and affordability of critical metals in the quantities needed, and how to manage the environmental impacts related to mining and processing them. The latter issue is likely to be much trickier than the former, argue Henry Lee and Xin Sun.

Institutional reforms are key to China tackling climate change. More are needed to secure a low-carbon future, write Henry Lee and Daniel Schrag.

In recent years, the relationship between China and the United States has been characterized by rising geopolitical tensions, and cooperation and coordination between the two countries has become something of a pipe dream. Yet there is one issue where the interests of both clearly overlap: climate change. A global temperature increase of 3°C will damage the economies and social fabric of both the United States and China—an outcome that both countries want to avoid. 

Daniel Schrag argues that in order to reestablish the United States as a serious partner in addressing global climate change, the president must make good on the original standards of the Paris Agreement.

Joseph Aldy advocates for a carbon-price benchmark — which could be set initially at $50 per ton and rise over time — that would reflect the benefits of reducing the pollution causing climate change.