Environment and Natural Resources

Al-Juaied and Whitmore examine the costs and prospects for direct air carbon capture and storage (DACCS), and identify types of funding needed for early deployment for DACCS and building momentum for later widespread deployment. The challenges of implementing DACCS at very large scale further emphasize the need for urgent and widespread action to reduce emissions, which should continue to be the main priority for meeting climate goals.

As a Predoctoral Research Fellow at the Belfer Center’s Environment and Natural Resources Program and Science, Technology, and Public Policy Program, Lydia Zemke has spent the last two years studying climate finance in developing countries. As she rounds out her time at the Belfer Center, Zemke she reflects on her research interests, her experience conducting fieldwork in Kenya and Costa Rica, and her advice for other early-career researchers. 

Legal scholar Andrey Todorov, Postdoctoral Research Fellow with the Arctic Initiative, reflects on the recent agreement reached by United Nations delegates to protect biodiversity in international waters and its implications for the Arctic. 

Arctic Initiative Research Fellow Andrey Todorov analyzes options to integrate the ecosystem-based approach (EBA) with Arctic Ocean governance.

As climate change and economic activity in the region accelerate in the Bering Strait region, the United States and Russia have a common interest in mitigating these shared environmental risks. A November workshop hosted by Harvard Kennedy School’s Arctic Initiative, the Wilson Center’s Polar Institute, and the World Wildlife Fund (WWF) brought together seventeen experts to explore potential actions that the United States and Russia could pursue, jointly or independently, to protect the Bering Strait’s sensitive marine ecosystem and coastal communities. 

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.

We used the US-TIMES energy-system model in conjunction with integrated assessment models for air pollution (AP3, EASIUR, InMAP) to estimate the consequences of local air pollutant (LAP) and carbon dioxide (CO₂) policy on technology-choice, energy-system costs, emissions, and pollution damages in the United States. We report substantial policy spillover: Both LAP and CO₂ taxes cause similar levels of decarbonization. Under LAP taxes, decarbonization was a result of an increase in natural gas generation and a near-complete phaseout of coal generation in the electric sector. Under a CO₂ tax, the majority of simulated decarbonization was a result of increased electric generation from wind and solar. We also found that the timing of the CO₂ and LAP taxes was important. When we simulated a LAP tax beginning in 2015 and waited until 2025 to introduce a CO₂ tax, the electric sector was locked into higher levels of natural gas generation and cumulative 2010–2035 energy system CO₂ emissions were 8.8 billion tons higher than when the taxes were implemented simultaneously. A scenario taxing CO₂ and LAPs simultaneously beginning in 2015 produced the highest net benefits, as opposed to scenarios that target either CO₂ or LAPs, or scenarios that delayed either LAP or CO₂ taxes until 2025. Lastly, we found that net benefits compared to business as usual are higher under a regional versus a national LAP-tax regime, but that efficiency gains under the regional tax are not substantially higher than those under the national LAP-tax policy.

The attached document contains April 2022 updates to our database on U.S. government investments in energy research, development, demonstration, and deployment (ERD3) through the Department of Energy.

How can China make good on its pledge to reach carbon neutrality by 2060? In Foundations for a Low-Carbon Energy System in China, a team of experts from China and the United States explains how China's near-term climate and energy policies can affect long-term decarbonization pathways beyond 2030, building the foundations for a smoother and less costly national energy transformation.

This paper analyzes clean hydrogen’s potential for driving emissions reductions in the mobility sector, focusing on road transportation, shipping, rail, and aviation. Overall, transportation is the second-largest producer of global CO2 emissions, after electricity and heat generation, and one of the hardest sectors to decarbonize due to its distributed nature and the advantages provided by fossil fuels in terms of high energy densities, ease of transportation and storage.