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California Assemblymembers introduce bill phasing out gasoline-fueled small off-road engines

Green Car Congress

AB 1346 would require new sales of SORE to be zero-emission by 2024 or whenever the California Air Resources Board (CARB) determines is feasible, whichever is later. Today, operating the best-selling gas-powered commercial leaf blower for one hour emits air pollutants comparable to driving a 2017 Toyota Camry from Los Angeles to Denver.

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NREL researchers point toward building energy efficiency instead of long-term storage

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Further, the researchers separated the country into five climate zones, ranging from the hot and humid (Tampa, Florida) to the very cold (International Falls, Minnesota). The other zones encompassed the cities of New York, El Paso, and Denver. They also determined that oversizing renewable capacities by a factor of 1.4

Building 186
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Researchers use IPCC AR5 models to forecast 10% drop in Colorado River flow in next few decades

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The study makes uses new simulations from the Coupled Model Intercomparison Project Five, to be assessed in Intergovernmental Panel on Climate Change Assessment Report Five (AR 5) due out next fall, to estimate seasonal changes in precipitation, evaporation, water runoff and soil moisture in the near future, 2021-2040.

Colorado 247
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ICCT assesses factors driving EV market in US cities

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Peter Slowik and Nic Lutsey analyze the connections among various state and local policies; public and workplace charging infrastructure; consumer incentives; model availability; and the share of new vehicles that are plug-in electric (both fully electric and plug-in hybrid). Source: The ICCT. Click to enlarge.

Market 186
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University of Texas at Austin study measuring methane emissions released from natural gas production

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Pioneer Natural Resources Company, Shell, Southwestern Energy, Talisman Energy, USA, and XTO Energy, an ExxonMobil subsidiary. Final results of the study will be published in a peer-reviewed journal and made publicly available. Large amounts of natural gas are now domestically available because of major advancements in technology.

Austin 210
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Study on Greenhouse Gas Emissions from Global Cities Highlights Importance of Geophysical and Technical Factors

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An international study of 10 global cities found that a balance of geophysical factors (climate, access to resources, and gateway status) and technical factors (power generation, urban design, and waste processing) determine the greenhouse gas emissions (GHGs) attributable to cities. Tonnes CO 2 e/capita. Credit: ACS, Kennedy et al.

Emissions 199
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Study concludes that NG leakage higher than reflected in inventories; transportation fuel climate benefits questioned

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In contrast to the “green light” for coal-to-NG substitution for power generation, the authors suggest that climate benefits from vehicle fuel substitution are uncertain (gasoline, light-duty) or improbable (diesel, heavy-duty). Modeling has shown climate benefits from coal to NG switching for power generation over all time periods (i.e.,

Climate 247