Stories in California

California Stories

Highlights from our work in the Golden State

A woman wearing waders sits by a wooded stream with a notebook and pencil in her lap and a backpack and other research equipment around her.
Garcia River Forest The Nature Conservancy's Applied Scientist, collecting data at various locations in the Garcia River Forest © Bridget Besaw


COP 26: Keeps Climate Hope Alive - November 24, 2021

By Michelle Passero, Director, California Climate Change Program

The U.N. COP 26 climate negotiations have just concluded in Glasgow, and many are trying to make sense of all the climate pledges and their implications. In the meantime, a few themes from the negotiations are emerging, keeping the hope of avoiding a global climate catastrophe alive and providing opportunities for nature-based solutions and subnational action.

Theme 1: Keeping global temperatures below a 1.5° C is still within reach

Country climate commitments, even with the additional net-zero emissions pledges made in Glasgow, are insufficient for keeping temperatures below a 1.5°C increase by end of century.  However, it’s estimated that the combined country pledges put the world on a trajectory of a 1.8°C increase, keeping the more ambitious goal within reach if countries and other key actors continue to accelerate climate action.  

Jennifer Morris, CEO da The Nature Conservancy, participou do anúncio do IFACC na programação da COP 26.
TNC at COP 26 Jennifer Morris, CEO of The Nature Conservancy, participated in the IFACC announcement in the COP 26 program. © ONU

Theme 2: Accelerated climate actions from subnational governments, corporations and local communities are critical

The estimated emissions gap between country greenhouse gas reduction commitments and the 1.5°C threshold underscores the critical need for climate action beyond the commitments of national governments. Enhanced actions by states, provinces, counties and cities, corporations, and local communities are critical for meeting this target and making up for uncertainties in reaching the goal. California, Hawaii, and New York, Salesforce and Apple are among the states and corporations with carbon neutrality commitments all have carbon neutrality.

Theme 3: Explicit acknowledgement of the importance of phasing out reliance on fossil fuel

The Glasgow Climate Pact represents the first time the phasing down of fossil fuel (e.g., coal, oil and natural gas) was explicitly mentioned in a U.N. climate agreement.  While language regarding the phase out of fossil fuels was ultimately weakened after initial draft versions of the Pact, the agreement still states that countries should move toward clean power, which includes the phasing down of “unabated coal power and inefficient fossil fuel subsidies.”

Mirror Lake in Yosemite Valley in California.
Nature-Based Climate Solutions Mirror Lake in Yosemite Valley in California. © Patrick Smith

Theme 4: Nature has a seat at the climate table

For the first time, a day was dedicated at the Conference to the importance of conserving and restoring nature to achieve the interdependent goals of climate change mitigation, adaptation, and biodiversity protection. During the Conference, over 100 countries committed to ending and reversing deforestation by 2030.  While a similar pledge was made in 2014 with little impact, this pledge holds more promise, as it is supported with public and private financial commitments of over $19.2 billion. Finally, the Glasgow Climate Pact language makes it clear that the protection and restoration of nature and biodiversity are necessary to meet global climate goals. 

So, what do these themes mean for California?

As the world’s fifth largest economy, California climate leadership remains critical for providing a roadmap for keeping global temperatures below a 1.5° increase. Over the past decade, our state has established and met increasingly ambitious climate goals for 2020 and 2030 while also growing our economy.  These commitments culminate in an executive order, for California to reach carbon neutrality (or net zero emissions) by 2045.

California has also been one of the first jurisdictions to integrate nature-based climate solutions into its climate policies, initially through its cap-and-trade program and inclusion of forest offsets. However, our state’s approach is evolving into a much more comprehensive set of actions. Conservation and restoration are now central to meeting California’s long-term goals of climate mitigation, adaptation and biodiversity protection.

The challenge for California is to continue building on its climate leadership so our state can continue to serve as the model and climate catalyst the world needs. The Nature Conservancy works every day to provide the science and support needed to ensure California meets this challenge.  


Giving Bears, Deer, Mountain Lions Room to Roam: Acquiring Frog Lake and Carpenter Ridge - July 2, 2020

When the railroad first came through the Sierra Nevada in the 1800s, the government divided the forest into a checkerboard of square-mile parcels. Many of these were given to the Union Pacific Railroad Company in exchange for laying track, and ultimately sold off one by one. This long game of checkers split up habitat for generations of wildlife, and TNC and our partners have worked for decades to reconnect the land.

In June of 2020, we had a major win in a series of linked land acquisitions. Through the Northern Sierra Partnership, TNC assisted a local land trust in acquiring the 680-acre Frog Lake property, a spectacular wild landscape nestled in a glaciated bowl below the Sierra Crest. Earlier this spring we helped the partners acquire 2,240 acres of forested lands known as Carpenter Ridge and Red Mountain, a steep ridgeline that insulates the fens and meadows of the protected Carpenter Valley.


A mountain lake with snowy hills behind it.
Frog Lake A spectacular wild landscape nestled in a glaciated bowl below the Sierra Crest. © Robb Hirsch
Angular snowy peaks and forested foothills.
Carpenter Ridge A steep ridgeline that insulates the fens and meadows of the protected Carpenter Valley. © Robb Hirsch
Frog Lake A spectacular wild landscape nestled in a glaciated bowl below the Sierra Crest. © Robb Hirsch
Carpenter Ridge A steep ridgeline that insulates the fens and meadows of the protected Carpenter Valley. © Robb Hirsch

Together, these connected lands provide habitat for imperiled species like the willow flycatcher and the gray wolf, which recently ventured back into California for the first time in a century. The area is home to other wide-ranging mammals like black bears, mountain lions, and mule deer. By protecting the slopes that surround Carpenter Valley, we’re not only conserving essential habitat, we’re securing the health of a watershed that hundreds of thousands of people rely on.

These acquisitions are a major milestone in reconnecting wildlife habitat in the Northern Sierra. The deal also opens once-private property for public recreation, so that people and nature can enjoy this pristine landscape for generations to come. Read about this historic acquisition in The Mercury News.

A stream running through grassy hills.
Nobmann Ranch In March 2020, TNC acquired the 462-acre Nobmann Ranch in the Lassen Foothills. © Cheryl Bretton

Protecting Land and Water in the Lassen Foothills - March 26, 2020

In March 2020, TNC acquired the 462-acre Nobmann Ranch in the Lassen Foothills. This beautiful property abuts our Dye Creek Preserve, connecting habitat for the state’s largest migratory deer herd and protecting Mill Creek, a haven for at-risk species like Chinook salmon and steelhead. Mill Creek has the highest elevation Chinook spawning grounds in North America. Salmon travel more than 300 miles from the ocean to reach their destination near Lassen National Park. Thanks to this acquisition, TNC has become one of the largest holders of water rights in the Mill Creek system. The property comes with an impressive water right of three cubic feet-per-second, the equivalent of three basketballs worth of water going by every second, 24 hours a day.

Mill Creek is fed by the cold, volcanic springs of the Cascade mountain Range, which makes it highly resistant to drought, unlike other rivers that rely on rain and snowmelt. We plan to bolster the health of the Mill Creek system and keep the stream flowing for salmon year-round by using our portfolio of water rights to deliver the water nature needs. With this work we are creating a model that can be replicated across the state to help California’s freshwater species thrive.

Now, the Nobmann property will be managed in conjunction with our Dye Creek Preserve. TNC holds more than 100,000 acres of conservation easements in the region, and this unique property adds a critical piece to the puzzle.


Aerial View As part of the multi-benefit recharge project in CA's central valley, carefully flooding fields can provide migratory birds food and habitat while helping recharge groundwater © John Brennan

March 21, 2022

Nerds to the Rescue in the Fight Against Drought

In California, water is life but groundwater is life support. Science shows that we’ve been in a state of drought for over 20 years. When conditions dry up farmers, communities, and especially wild plants and animals increasingly turn to groundwater. 

California’s aquifers are filled with ancient water that sustains our state during drought. But, unlike surface water, when we use up our groundwater reserves, they’re gone. 

This year, TNC’s California Water Team made a big difference for California’s groundwater using some pretty nerdy tactics. 

After recent droughts, groundwater pumping regions were required to submit plans to the state for protecting their aquifers. But not every plan passed muster. Some allowed wells to go dry and left no water for nature, while others entirely overlooked climate change, one of the biggest threats to groundwater and water security. 

Together with our partners we clipped on our pocket protectors and systematically reviewed 94 plans (over 90,000 pages!). We gave our recommendations to the state, and guess what? They listened! Because of our review, The Department of Water Resources sent over half the plans back to the drawing board because they failed to protect water for nature and drinking water for people.

You don’t have to be collaring mountain lions to be a voice for nature, sometimes a pair of reading glasses is all it takes.

Expand to see more Collapse to see less
Larry Serpa behind an insect tent
Larry Serpa Larry Serpa collecting specimens inside of an emergence tent. © Larry Serpa


Remembering Larry Serpa: The Work of a Lifetime

This year, TNC lost a conservation legend. Larry Serpa spent 45 years at TNC as an aquatic ecologist, managing natural areas, surveying properties for rare species and leading exemplary and often surprising trips into the field. His fascination for the hard-to-find and overlooked was well known and infectious among his colleagues. Larry’s true passion was freshwater ecosystems, and the insects that support aquatic food chains. He wanted to know “who lives where” and how the populations of these insects differed across habitat types and geography.

Beginning in graduate school, Larry visited streams across California from nearly sea level to elevations over 10,000 feet, collecting specimens, identifying and cataloging his finds. Over time, he built what became the largest individual collection of aquatic insects from our state, numbering over 190,000 specimens. Larry kept his data meticulously, documenting times, locations, and ultimately identifying over 1,500 individual species, including some that were previously thought to be extinct.

Thanks to his wife Lynn Lozier, Larry’s collection has been donated to the California Academy of Sciences. The Academy reports that it is one of the largest collections they’ve ever received, and its addition makes their institution “easily the biggest and best resource for western aquatic collections.” Now, with these data, scientists will be able to track how species have moved and California ecosystems have shifted—critical insights that can help our state adapt to climate change. In spring of 2021, Larry lost a battle with cancer, but he spent his life doing what he loved—walking in the water—uncovering the mysteries of California’s streams.

Expand to see more Collapse to see less
Conservation in a Hard Hat (2:58) Protecting Salmon on the Ten Mile River

Conservation in a Hard Hat: Protecting Salmon on the North Coast - January 25, 2019

You might think habitat restoration is a delicate business, but sometimes it involves heavy machinery. Our salmon project on the Ten Mile River employed a full construction crew to bring the river back to its historical meander. TNC’s Dave Wright is leading the restoration, partnering with local ranchers and a local construction company to get the job done. Watch Dave’s time-lapse video to get a front-row seat.

The shape and flow of a river has a big impact on salmon health; young salmon need protected pools and bends to rest and feed while they grow. Over the last century, logging and ranching have reshaped our rivers, and salmon have suffered. Coho salmon have dwindled to about 1% of their historical population. Ten Mile River in Mendocino County is one of California’s last coastal watersheds that can still sustain this fragile species. It’s critical that we step in now to bolster what little habitat remains.

With support from the S. L. Gimbel Foundation and the California Department of Fish and Wildlife, we are giving young salmon a head start in life. We’ve built pools, recreated woody debris, and planted willows to keep the water shaded and cool.

With such a diverse group of local partners involved, this project is redefining how restoration is implemented across our rivers and streams. 


Jumping humpback whale
Jumping Humpback Whale A humpback whale breaching off the California coast. © gudkovandrey -

Our Kind of Party: A Science Convening for Saving Whales - October 21, 2020

Earlier this month, TNC and the Ocean Protection Council hosted the West Coast’s largest science convening to prevent whale entanglement. Each year, whales are accidentally caught in marine debris and the gear that fishermen set out in the ocean. This can result in serious injury or even death. 

The science convening was designed to combat the issue on all sides, featuring panel discussions between state and federal fishery managers, fishermen, and presentations from more than 20 researchers from around the U.S.. Presentations highlighted opportunities for greater collaboration, as well as new tools and research to reduce the risk of entanglement in West Coast fisheries. And thanks to its virtual format, the convening safely hosted over 200 attendees. 

The timing of the event was critical. Washington, Oregon and California are all developing entanglement risk management plans that will set the course for improving whale conservation and uphold the fisheries that serve as economic pillars in the three states. Now, informed by findings from the workshop, the Ocean Protection Council is developing a competitive call for over $2 million in public funding to advance research and tools to reduce entanglement-risk across the West Coast.

Map showing a large swath of area off the coast of California that has been protected by TNC.
Conservation Area Closures 150,000 square miles of protected critical seafloor habitat off the west coast. © TNC

Protecting Essential Ocean Habitat - June 4, 2020

Six years of collaborative efforts led by TNC’s California Ocean Program resulted in the protection of 150,000 square miles of critical seafloor habitat off the west coast. That’s nearly the size of the state of California! New regulations protect this habitat which is home to deep-sea coral and sponge formations. Fish populations have recovered to the extent that historically important fishing grounds have been able to reopen.

Protecting ocean habitat isn’t just a goal of environmental organizations; fishing communities also depend on a healthy ocean. But these two groups often find themselves at odds. In 2012, TNC and a coalition of organizations and fishing leaders came together to change that.  

We brought together an extraordinary collaborative with the help of the Natural Resources Defense Council, the Environmental Defense Fund, and fishing industry professionals of all kinds. The collaborative held over 30 port meetings up and down the West Coast to negotiate a new proposal to the federal government that would enhance habitat protections while saving fishermen’s livelihoods. 

By cross referencing fishermen’s knowledge of the seafloor with new scientific data, we were better able to identify high-value fishing areas and sensitive habitat for protection. The result was a massive win for the ocean and a more sustainable future for West Coast fishing communities. 

By the Numbers: Upgrading Essential Fish Habitat

  • 17,000 new square miles of seafloor fish habitat protected


    New square miles of seafloor fish habitat protected

  • 123,000 new square miles of deep-water habitat protected


    New square miles of deep-water habitat protected

  • •	3,000 square miles of sustainable fishing grounds reopened where fish populations have recovered


    Square miles of sustainable fishing grounds reopened

  • 275,000 square miles of California ocean habitat protected since 2006


    Square miles of CA ocean habitat protected since 2006

Notes from the Field

Welcome to Notes from the Field, a video newsletter straight from our TNC scientists that dives into our conservation projects in the field. 
Scouting for Whales (4:40) This month, we follow California Oceans Project Director Aliya Rubinstein as she and her team partner up with Conservation Tech to revamp the technology rescuers use to save whales tangled in fishing gear. Meet Scout, a little orange device that will help first responders protect whales.
Join the Fire Line on a Controlled Burn! (5:12) Join Sierra Nevada Project Manager Angel Hertslet as she and the team conduct a “controlled burn,” putting beneficial fire on the landscape to help protect the forest from catastrophic megafires.
Giant Kangaroo Rat (8:24) Welcome to Notes from the Field, TNC's video newsletter, handcrafted by our scientists in the field! This month, Scientist Scott Butterfield introduces us to the amazing endangered species of Central California's Carrizo Plain, a protected landscape the size of Los Angeles. Join him.
Blunt-Nosed Leopard Lizard (5:33) This month, Senior Scientist Scott Butterfield is introducing us to the amazing endangered species of Central California's Carrizo Plain, in a special two-part series. This week, he's back on the plain tracking the elusive blunt nosed leopard lizard using radio monitoring.
Red-legged Frogs Hop to New Habitat (4:23) This month, Stewardship Manager Susan North takes us on an international journey to reintroduce the red-legged frog to its native habitat in Southern California. join her and our partners in the US and Mexico as they transport bundles of eggs to their new home.
A Salmon Dating Service (3:59) Scientist Jennifer Carah takes us inside a conservation dating service for endangered coho salmon on California’s North Coast. Join her in the river as she and our partners help these fish find that special someone.
Meet Poseidon (3:18) Fisheries Project Director Frank Hurd takes us out on the water in El Manglito, Baja California Sur. A TNC tool called Poseidon is helping this tight-knit fishing community protect marine life and ensure sustainable catch.