Future Scenarios for Western US Power Grid (image) University of California - Berkeley Share Print E-Mail Caption This is a chart showing how different mixes of fuels can affect the carbon emissions in 2050 from the electrical grid in the western US. Biomass carbon capture and sequestration and biomass co-firing CCS on coal CCS plants provide negative carbon dioxide emissions. As emissions limits are reduced, fossil-fuel CO2 emissions shift from coal and combined-cycle gas turbine technology to CCGT with CCS. Credit Daniel Kammen and Daniel Sanchez, UC Berkeley Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.