The time for the global community to slash greenhouse gas emissions enough to avoid dangerous levels of climate warming was years ago. Yet climate scientists indicate we can still avoid the worst impacts of climate change if the world acts swiftly to cut emissions and fossil fuel use. But how?
新澳门六合彩内幕信息 Davis is starting at home.
In 2013, the University of California launched the Carbon Neutrality Initiative, committing all 10 campuses to making their buildings and vehicle fleets climate neutral by 2025. Being carbon neutral means reducing campus emissions and offsetting any residual emissions so the campus is responsible for zero net emissions being released to the atmosphere. As the deadline draws near, the ambitious commitment is spurring scalable solutions to help the world bend the curve on climate change.
新澳门六合彩内幕信息 Davis is no stranger to environmental commitments. Ranked No. 1 in the nation and fifth in the world for sustainability by UI GreenMetric, 新澳门六合彩内幕信息 Davis has already reduced its operational emissions by 40 percent since it began measuring them in 2005. Even so, the CNI commitment challenged the university to strengthen its efforts.
Dashing to zero
To get to zero, one first needs to know how far it is to the finish line.
Staff from 新澳门六合彩内幕信息 Davis and 新澳门六合彩内幕信息 Santa Barbara created a Carbon Neutrality Dashboard (cnidashboard.ucop.edu) to track 新澳门六合彩内幕信息鈥檚 progress. Searchable by campus, the dashboard allows users to explore emissions-reduction strategies from 2009 through 2025. It was inspired by the 新澳门六合彩内幕信息 Davis Campus Energy Education Dashboard, which depicts real-time energy use of campus buildings.
鈥淏eing aware, seeing progress and defining actions can help motivate you,鈥 said Angela Sanguinetti, a 新澳门六合彩内幕信息 Davis environmental psychologist who helped create both dashboards. 鈥淒ashboards help in all three of those areas. Showing what鈥檚 being done helps people see what can work and how they can contribute.鈥
新澳门六合彩内幕信息 Davis is the largest campus by area in the 新澳门六合彩内幕信息 system, with 5,300 acres and more than 1,000 buildings in Davis and Sacramento. 新澳门六合彩内幕信息 Davis is projected to emit 141,964 metric tons of CO鈧 in 2022. That鈥檚 roughly the same as its 1990 estimates, despite the university鈥檚 growth. The dashboard shows campus net emissions further dwindling to zero by 2025.
How will it lose the extra 鈥渨eight鈥 in such a short amount of time? Our carbon-diet strategies include a mixture of increased renewable energy, energy efficiency and a portion of carbon offsets. Biogas and additional carbon offsets kick in around 2024 to reach net zero by 2025.
Want to dive even deeper into the 新澳门六合彩内幕信息 Davis details? Visit sustainability.ucdavis.edu/goals/climate.
A 鈥楤ig Shift鈥
Recent visitors to 新澳门六合彩内幕信息 Davis have likely seen or stepped over a key strategy 新澳门六合彩内幕信息 Davis is taking to literally lay the groundwork to reduce its energy, water use and reliance on fossil fuels. The 鈥淏ig Shift鈥 is a major construction project designed to replace the campus鈥檚 natural-gas powered steam system with a renewable energy-powered hot water system for the campus鈥檚 heating and cooling needs.
The shift from natural gas to an electricity-powered system takes advantage of renewable energy sources, including 新澳门六合彩内幕信息 Davis鈥 solar power plant 鈥 the nation鈥檚 largest solar installation on a university campus.
Other efforts to cut emissions include electrifying the Unitrans bus fleet, continuing to invest in green buildings, such as our LEED Platinum buildings, and investing more in renewable energy and electrification on and off campus.
The offset challenge
Most global plans to reach net zero rely on carbon offsets, at least for now. 新澳门六合彩内幕信息鈥檚 Carbon Neutrality Initiative is no exception.
Carbon offsets are a market-based strategy that involve activities that reduce emissions or remove carbon enough to 鈥渙ffset鈥 the buyer鈥檚 continued emissions. Such activities range from planting trees to landfill-gas capture and renewable energy projects. Each offset credit is equivalent to one ton of CO鈧 reduced or removed from the environment.
But aren鈥檛 carbon offsets just kicking the can down the road 鈥 or to somewhere else on the planet? 新澳门六合彩内幕信息 sustainability leaders had similar questions.
鈥淐arbon offsets are not the end game,鈥 said Camille Kirk, director of 新澳门六合彩内幕信息 Davis Sustainability and campus sustainability planner. 鈥淲hen we realized we would need offsets, we knew we needed to address their shortcomings. We are working hard to find offsets that align with our values.鈥
Going to zero
新澳门六合彩内幕信息 Davis plans to fully offset emissions by 2025 with a mix of renewable and zero-carbon energy sources, efficiency savings and carbon offsets.
Net carbon emissions and reductions
Explore an of the above graphic. Source:
Barbara Haya, a 新澳门六合彩内幕信息 Berkeley research fellow and frequent critic of carbon offsets, was selected to develop offset strategy recommendations for the 新澳门六合彩内幕信息 system that 1) meet climate neutrality goals, 2) are effective and enforceable, and 3) reflect 新澳门六合彩内幕信息鈥檚 commitment to environmental and social justice.
鈥淥ffsets are allowing 新澳门六合彩内幕信息 to take on this very ambitious goal of being carbon neutral by 2025,鈥 Haya said. 鈥淏ut there is a wide variety of quality out there. The challenge is making sure we continue to reduce our emissions toward zero in a way that balances the costs and meets our obligation to stop burning fossil fuels.鈥
Homegrown carbon offsets
Haya, Kirk and other sustainability officers, students and faculty across 新澳门六合彩内幕信息 developed a two-pronged approach that seeks out high-quality offsets available on the current market while also developing homegrown, 新澳门六合彩内幕信息-initiated offset projects.
Twelve 新澳门六合彩内幕信息 projects were awarded seed grants for offset projects in 2019, including three at 新澳门六合彩内幕信息 Davis. Those include research projects that supplement livestock feed with red seaweed to reduce methane, that increase soil carbon and crop benefits by applying soil amendments to croplands, and that drain flooded rice fields mid-season, to reduce methane emissions.
Henry Perry, a horticulture and agronomy graduate student in Professor Bruce Linquist鈥檚 lab in the Department of Plant Sciences, is conducting the rice field research. Preliminary results show that methane emissions can be reduced up to 77 percent by draining rice fields mid-season, without impacting yields.
鈥淭he seed grant was really helpful in getting the initial phases of the project off the ground,鈥 Perry said. 鈥淭he people at 新澳门六合彩内幕信息OP and with the Carbon Neutrality Initiative have been very supportive regarding the other aspect of the project, too, which involves learning about the carbon offset market. This could be an effective roadmap for generating credits, incentivizing rice farmers, and respectfully encouraging widespread changes in their practices. These changes will promote more sustainable rice farming by mitigating greenhouse gas emissions.鈥
Exploring fossil-free
Recently, Chancellor Gary S. May also tasked the newly formed Campus Advisory Committee on Sustainability to chart a roadmap to eliminating fossil fuels from campus operations. The committee, co-chaired by Kirk and Jim Carroll, associate vice chancellor of 新澳门六合彩内幕信息 Davis鈥 Design and Construction Management, plans to develop the roadmap by December 2022.
鈥淲e have done a lot to reduce our greenhouse gas emissions,鈥 Kirk said. 鈥淲e are well on our way to meeting the 新澳门六合彩内幕信息-wide Carbon Neutrality Initiative, and we have a lot more to do.鈥