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The EESI 2023 Climate, Environmental, and Energy Congressional Hearings Tracker lists the hearings conducted by various U.S. House and Senate committees throughout 2023. The tracker highlights a high volume of activity in the House Committee on Natural Resources (28 hearings), the House Committee on Energy and Commerce (24 hearings), and the Senate Committee on Environment and Public Works (22 hearings). Key themes across these committees include the implementation of the Inflation Reduction Act and the Infrastructure Investment and Jobs Act, energy security, critical mineral supply chains, water resource management, and the economic risks of climate change.

This policy brief by RMI argues that the United States does not need further studies to justify expanding interregional electricity transmission, as the need is already well-documented. The author contends that current grid bottlenecks are delaying clean energy projects and increasing vulnerability to extreme weather, urging Congress to implement minimum transfer requirements, mandate proactive planning, and streamline permitting processes.

Carbon mineralization is a carbon dioxide removal (CDR) process that accelerates the reaction between CO2 and alkaline minerals (like those in basalt) to permanently store carbon as solid carbonates. While it offers potential co-benefits such as strengthened concrete and the neutralization of toxic mine tailings, scaling the technology poses risks including induced seismicity, high water usage in arid regions, and environmental impacts from increased mining. The document emphasizes the need for standardized measurement, reporting, and verification (MRV) protocols and updated mineral mapping to scale the process responsibly.

This guide explains the technology, efficiency, and types of heat pumps, highlighting their ability to provide both heating and cooling while reducing greenhouse gas emissions and improving air quality compared to traditional fossil fuel systems.

A guide by RMI providing six recommendations for homeowners to improve health, save money, and reduce carbon emissions during COVID-19 shelter-in-place orders, focusing on energy efficiency and electrification.

This briefing by RMI, authored by WattTime co-founder Gavin McCormick, argues that managing climate change requires shifting from average to marginal carbon emissions measurements for electricity. The author explains that because the grid's marginal resource changes every 5 to 15 minutes, timing and locating energy use and generation based on real-time marginal data can significantly reduce CO2 emissions without requiring new infrastructure investments.

This report analyzes the greenhouse gas (GHG) and air pollutant emissions of 15 alternative fates for woody biomass residues in the Pacific Northwest and Alaska, comparing them to common practices of on-site combustion and decomposition. Using a "post-harvest to grave" life cycle approach, the study evaluates carbon dioxide, methane, nitrous oxide, carbon monoxide, and fine particulate matter (PM2.5). The findings indicate that displacing fossil fuels with biomass residues generally reduces net GHG emissions, while industrial facilities with emission controls significantly reduce CO and PM2.5 compared to uncontrolled on-site burning.

The document proposes a strategic commercialization path for fuel cells and hydrogen (H2) that avoids the need for immediate, massive bulk-supply infrastructure. The strategy relies on the development of "Hypercars"—ultralight, high-efficiency vehicles—and the integration of fuel-cell deployment between buildings and vehicles. By first establishing fuel cells in buildings for co- or trigeneration and using decentralized "hydrogen appliances" for production, the market can build the volume necessary to reduce fuel-cell costs to levels competitive for vehicles. Ultimately, the strategy envisions a transition from decentralized production to bulk supply, including wellhead reforming of natural gas with carbon sequestration and the conversion of hydroelectric dams into "Hydro-Gen" plants.