Science, Technology, and Public Policy

On December 3, 2022, Nicola De Blasio, Senior Fellow with the Belfer Center’s Environment and Natural Resources Program (ENRP), chaired a panel discussion, “Is Hydrogen Our Future?,” at the Rome MED – Mediterranean Dialogue (Rome MED), an annual high-level conference on Mediterranean geopolitics. The panel discussion was part of ENRP’s Future of Hydrogen project’s ongoing engagement with global policymakers, who are increasingly viewing hydrogen as a solution to meeting their decarbonization and energy security goals. 

This paper focuses on the market and geopolitical implications of renewable hydrogen adoption at scale in the European Union (EU). The authors analyze long-term strategies based on three reference scenarios in which the EU prioritizes a different strategic variable: energy independence, cost (optimization), or energy security. Developing competitive and secure hydrogen markets will require close coordination between policy, technology, capital, and society—and for EU countries to unite behind a shared long-term vision.

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.

David Keith argues that either or both carbon removal or solar geoengineering  is needed to cool the planet this century. There are no other options.

Renewable hydrogen offers significant advantages for China. It can help Beijing meet its climate and pollution goals—at a time when coal continues to dominate—while avoiding increased reliance on imported fuels. As a readily dispatchable means of storing energy, hydrogen can help to address intermittency and curtailment issues as renewable energy increases its share of China’s energy mix. As a sustainable mobility energy carrier, it can power fuel-cell electric vehicles or be the base for synthetic fuels. Finally, renewable hydrogen can open new avenues for developing clean technology manufactured goods for both internal and export markets.

Renewables are widely perceived as an opportunity to shatter the hegemony of fossil fuel-rich states and democratize the energy landscape. Virtually all countries have access to some renewable energy resources (especially solar and wind power) and could thus substitute foreign supply with local resources. Our research shows, however, that the role countries are likely to assume in decarbonized energy systems will be based not only on their resource endowment but also on their policy choices.

In this report, the authors conduct a benchmarking analysis for energy and CO2 emissions intensity of the steel industry among the largest steel-producing countries.

Every day that the EPA quietly ticks off another item, the social and financial consequences are being shifted from polluters to at-risk communities.

Cement production is one of the most energy-intensive and highest carbon dioxide (CO2) emitting manufacturing processes. The goal of this study is to develop a roadmap for decarbonization of California's cement and concrete production. In this study, the authors look at the current status of cement and concrete production in California and develop scenarios up to 2040 to analyze different decarbonization levers that can help to reduce CO2 emissions of cement and concrete production in California.

Deploying coal-bioenergy gasification systems with carbon capture and storage (CBECCS) provides a promising opportunity for China to realize its carbon mitigation and air pollution abatement goals simultaneously. The authors conducted a comprehensive assessment of CBECCS technology for China, with a focus on plant and fuel configurations (e.g., biomass ratios) and economics, as well as CO2 and greenhouse gas emissions and cobenefits for air quality.