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What GAO Found GAO examined six common medical and industrial applications that use high-risk radioactive materials—identified through agency and expert reports—and found that three applications already have technically viable alternative technologies in many circumstances and for which there is...
Why This Matters Renewable ocean energy has the potential to reduce global carbon emissions from fossil fuels by 500 million tons by 2050, and could also meet the energy needs of isolated communities, which may not have access to reliable electricity sources.
What GAO Found Stakeholders vary in how they define and assess the sustainability of chemical processes and products; these differences hinder the development and adoption of more sustainable chemistry technologies.
What GAO Found Stakeholders lack agreement on how to define sustainable chemistry and how to measure or assess the sustainability of chemical processes and products; these differences hinder the development and adoption of more sustainable chemistry technologies.
What GAO Found Waterless and water-efficient fracturing technologies such as gas-based fracturing or foams have been used to reduce the use of freshwater in hydraulic fracturing operations, although the main benefit is enhanced hydrocarbon recovery.
Interactive Features Depiction of the Global Carbon Cycle Changes Over Time Global Average Energy Budget of the Earth's Atmosphere Reports of rising global temperatures have raised questions about responses to climate change, including efforts to (1) reduce carbon dioxide (CO2) emissions, (2) adapt to...
Policymakers have raised questions about geoengineering--large-scale deliberate interventions in the earth's climate system to diminish climate change or its impacts--and its role in a broader strategy of mitigating and adapting to climate change.