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A young boy explores Sequoia National Park in California.
Thank you for passing Prop 4! California voters approved a climate bond supporting safe drinking water, wildfire prevention, drought preparedness and clean air. © Nick Hall
Stories in California

Thank you for passing Prop 4!

California voters approved a climate bond supporting safe drinking water, wildfire prevention, drought preparedness and clean air.

November 6, 2024 – TNC is grateful to announce the successful passage of Proposition 4 in California. Thank you to everyone who supported this critical measure. 

Prop 4 will provide $10 billion in general obligation bonds to protect our water quality, increase water supplies, prevent wildfires and their impacts, safeguard natural areas, conserve biodiversity, and ensure frontline communities have access to safe drinking water, shade and green space.

This significant investment in conservation reflects the support and commitment of California voters to shaping a safer, more climate-resilient state and a brighter future for our communities. TNC extends its sincere gratitude to California voters for their climate action. We would also like to thank the following for their vital contributions to the passage of Proposition 4:

  • Senator Ben Allen
  • Chairman Greg Sarris
  • Assemblymember Eduardo Garcia
  • Assemblymember Lori Wilson
  • Senator Monique Limón
  • Yes on Prop 4 Campaign Committee

Quote: Liz Forsburg Pardi

Californians are taking charge and doubling down on climate action to protect themselves and build a more resilient future while preserving what makes our state special. We are inspired and grateful to see voters back the largest climate and natural resources bond in state history.

Liz Forsburg Pardi California Policy Director

The Positive Impacts of Prop 4

  • Drinking Water Protections: $3.8 billion to remove toxic pollutants from our drinking water supplies and help ensure all Californians have safe drinking water in their homes. Proposition 4 also invests in water recycling and conservation to cost-effectively increase our water supplies and improves dam and levee safety to prevent floods.  

    • Wildfire Prevention Measures: $1.5 billion to prevent wildfires, reduce their damage when they do occur, and improve disaster response. 
    • Extreme Heat Mitigation Programs: $450 million to develop and implement strategies to protect Californians from extreme heat. 
    • Coastal Protection from Rising Sea Levels: $1.2 billion to safeguard coastal communities and resources from the impacts of sea-level rise. 
    • Funding for ocean recovery including acre-based targets for restoring ocean ecosystems such as kelp forests, eelgrass meadows and native oyster beds, as well as funding for climate-ready fisheries and protecting CA’s Channel Islands.  
    • Investments in improving ocean and beach conditions to reduce pollution and increase  water quality for marine life. 
    • Wildlife Protection and Nature-Based Climate Solutions: $1.2 billion to preserve wildlife habitats, implement nature-based solutions to climate change, and prevent extinctions.  
    • Climate-Smart Farms, Ranches, and Working Lands: $300 million to support sustainable agricultural practices. 
  • $700 million to enhance green spaces and ensure public access to natural areas. 

Coastal Dunes at Moss Landing in California.
Nature-Based Climate Solutions Wetland and dunes provide many benefits including increased carbon stocks & flood protection.

What are Nature-Based Climate Solutions?

Conservation projects that store carbon and protect against the effects of climate change. Restored forests can prevent megafires. Wetlands and dunes insulate us from sea-level rise. And open space benefits us all. 

× Coastal Dunes at Moss Landing in California.

California Needs...

  • Public safety is extremely important to Californians, but climate impacts like heat, fire and flooding threaten well-being in multiple ways. The recent IPCC report shows that incidents of crime and domestic violence increase during extreme weather and heat events, and with the last eight years categorized as “the hottest year on record” California can’t afford to ignore the problem. 

    Nature’s Solution: Urban Tree Cover

    Increasing urban tree cover can lower temperatures up to 10 degrees Fahrenheit. It’s a cheap and durable way to uplift neighborhoods and decrease crime.

  • California’s drinking water relies on the health of our rivers and aquifers. But overpumping of groundwater and water diversions from rivers are drying up the water we all rely on. 

    Nature’s Solution: Functional Flows

    The Nature Conservancy led a state-wide initiative to determine how much water our rivers and streams need to support nature and people. We have the answer, now it’s time to make sure nature gets that water. California must transition to a future where our rivers are managed to benefit wildlife, a move that coincidentally gives them the tools to use against extreme drought and flooding. 

  • Californians can’t function if we can’t breathe. Smoke from megafires is keeping us inside, shutting down schools and businesses and impacting our health. At the same time, megafires have displaced whole communities.

    Nature’s Solution: Forest Restoration

    Ecological forest restoration is proven to prevent megafires. This proactive management technique includes thinning and controlled burns and it preempts the need for fire suppression so Cal Fire and the US Forest Service can better spend their resources. 

  • California is in a mental health crisis. Nearly 1 in 7 adults in our state experience a mental illness, and 1 in 14 children have an emotional disturbance that limits functioning (California Health Care Foundation). Access to nature is proven to positively impact mental health, but open space is less available to the Californians who need it most. At the same time, poorly planned development is eating into natural areas, removing open space access and increasing wildfire risk. 

    Nature’s Solution: Open Space Around Cities

    TNC has a plan to protect the natural lands that matter to Californians and sustain the native species with whom we share this state. Creating open space around communities not only improves mental health and protects wildlife, it saves lives in the face of wildfire. We’re working with the Paradise Rec and Park District to design an open space buffer for the new city plan that will reduce wildfire risk by nearly 70%.

Nature-Based Climate Priorities

A house nearly engulfed with smoke and fire.
Land Nature can protect our lands. © TNC

California Needs Healthy Natural Lands

California made a historic commitment to protect 30% of its natural lands by 2030, but acres alone are not enough. To protect California’s rich diversity of plants and animals, we need to make sure we are protecting lands across all habitat types and managing these lands effectively. 

California relies on a wide diversity of plants, animals and habitats to protect us from disease and the effects of climate change, but only three out of California’s eight major ecosystem types are currently protected under the state’s 30% protection milestones.

The climate bond will ensure that we have the funding to support all of California's rich and diverse habitats.

Surfer walking on beach covered in trash.
Oceans Nature can protect our oceans. © Jason Childs

California Needs Healthy Oceans

Oceans produce 50% of the air we breathe and support over one million jobs in our state. But our oceans are under threat. 

Beginning in 2014, a perfect storm of climate-driven events resulted in the loss of 96% of our state’s kelp forests on California’s north coast. This devastated the ecosystem and the local economy.

A dry river bed surrounded by cracked dirt.
Water Nature can protect our water © TNC

California Needs Healthy Rivers

It’s time to manage California’s water for the realities of climate change. 

Weather whiplash illustrates the dramatic extremes of California’s climate and requires a new approach to water management. We’ve altered how much water is flowing in California's streams, leaving them unprepared for extreme rain events like atmospheric rivers or for devastating droughts. The Nature Conservancy’s science shows that restoring natural systems can protect our water supplies and knowing when and where nature needs water will allow us to reconcile California’s water needs with the realities of climate change.

The Nature Conservancy is supporting policies that enable communities to start planning for droughts while keeping enough water instream. This protects keystone species like salmon and supports California’s freshwater ecosystems from riverside forests to wetlands.

California Voters: Thank you for passing Proposition 4

Paid for by The Nature Conservancy in California.