How California Cuts Greenhouse Gas Emissions - While Its Economy Grows

In 2022 about 346,000 electric cars were reportedly sold in California. But the same year its greenhouse gas emissions dropped a whopping 9.3 million metric tons — the amount produced by 2.2 million gas-powered cars — lowering emissions 2.4% from the year before. 'The biggest drop came from transportation, due largely to the increased use of renewable fuels,' according to the state's Air Resources Board, touting a newly-released report. (And electricity sector emissions also fell by 2.6 million metric tons, or 4.1%, 'even as electricity usage rose,' according to The Hill — 'a dichotomy that the regulators attributed to an increase in solar and wind power generation.')

So despite a growing economy, 'the latest data underscores a continued trend of steady emissions decline...' according to a statement from the Board. 'Between 2000 to 2022, emissions fell by 20% while California's gross domestic product increased by 78%, pointing to the effectiveness of the state's climate change and air quality programs.' And the amount of carbon dioxide equivalent emitted per unit of economic output ('carbon intensity') has also dropped 55% in the last 20 years:
[In 2022] the electricity sector had its lowest carbon intensity since 2000. Wind and solar now represent 30% of generation and in-state solar increased by 15% from 2021, driven by requirements under the state's Cap-and-Trade Program and Renewables Portfolio Standard. Furthermore, California increased its battery storage by 757% from 2019 through 2023, bolstering its renewable energy efforts. The storage capacity is enough to power 6.6 million homes for up to four hours.

Industrial emissions declined by 2%, also falling to the lowest level in 22 years. While refinery emissions remained essentially flat, emissions from oil and gas extraction declined, as did emissions from other fuel use, cement manufacturing, and cogeneration facilities. [The Hill says 2022's industrial emissions were 21.7% below year-2000 levels, according to the report.]
Livestock emissions, which are responsible for 70% of agriculture's greenhouse gas emissions, peaked in 2012 and once again saw reductions in 2022. The decrease is driven by the use of methane digesters funded by the California Climate Investments and incentivized by the Low Carbon Fuel Standard, which capture emissions at the source and convert them to clean fuel.
Landfill methane emissions also continued to decline in 2022. This decline can be attributed in part to the state's efforts to reduce disposal of organic waste, as well as the California Landfill Methane Regulation, which requires landfill operators to monitor and capture emissions escaping from their facilities.


One local news site calls the drop in emissions 'shocking,' but adds that 'the trend is expected to continue. In the second quarter of 2024, 118,181 zero-emission vehicles were purchased in the state, good for about one-quarter of all new car sales.'

California governor Gavin Newsom said his state 'is proving that climate action goes hand-in-hand with economic growth. We've slashed carbon pollution by a whopping 20% since the turn of the century all while building the world's fifth largest economy. Cleaner air, more good jobs — that's the California way.'

Read more of this story at Slashdot.