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Using the EPA's AVERT tool and 2021 data, the analysis finds that ignoring additionality, regionality, line loss accounting, or hourly time-matching can lead to hydrogen production emissions that exceed the threshold for the top $3/kg 45V tax credit. Specifically, forgoing additionality could result in emissions 22 to 40 kgCO2/kgH2, which is more than twice the emissions of steam methane reformation.

The document examines how a warming atmosphere increases the frequency and intensity of extreme precipitation, contributing to higher inland flood risks in parts of the United States, particularly the Midwest and Northeast. It highlights that while climate change is a driver, land-use changes—such as development in floodplains and the removal of wetlands—significantly exacerbate flood risk. The report argues that current FEMA flood maps are inadequate because they rely on historical data rather than future projections. To mitigate these risks, the authors recommend reforming the National Flood Insurance Program, increasing funding for river gauge networks and flood mapping, and implementing nature-based infrastructure and stricter zoning regulations to discourage floodplain development.

The Rocky Mountain forests are facing a "triple assault" of tree-killing insects, wildfires, and heat and drought, all driven by human-caused global warming. Bark beetle outbreaks killed trees on 46 million acres between 2000 and 2012, while large wildfires increased by 73 percent from 1984 to 2011. Iconic species like whitebark pines, aspens, and piñon pines are in catastrophic decline, with projections suggesting a 60 percent loss in suitable area for aspens by 2060 under medium-high emissions scenarios. The report argues that without reducing heat-trapping emissions and managing for resilience, these forests may be irrevocably degraded.

The document details how rising temperatures in the Northwest are reducing springtime snowpack and shifting streamflow timing, which threatens water supplies, hydropower production, and salmon populations. It also highlights risks of increased forest fires, pest infestations, and coastal erosion due to sea-level rise, particularly in the Puget Sound region.

The document advocates for amending the Energy Independence and Security Act of 2007 to include federal forest residues as eligible feedstocks for the Renewable Fuel Standard (RFS). It argues that utilizing these materials would provide a sustainable source of cellulosic biofuels without the indirect greenhouse gas emissions associated with agricultural land displacement. Furthermore, the author contends that creating markets for small-diameter trees through the RFS would make hazardous fuel reduction and forest restoration more cost-effective, reducing the risk of catastrophic wildfires and improving ecosystem health.