How Communities Are Using Nature-Based Solutions to Tackle Climate Change
Imagine scientists and volunteers working together, armed with smartphones and sensors, to map an entire city's biodiversity in a single weekend. This isn't science fiction—it's happening right now in communities worldwide, where a revolutionary approach to environmental science is turning local landscapes into living laboratories.
The way we study nature is undergoing a dramatic shift, from passive observation to active intervention, with communities and scientists collaborating to implement solutions that benefit both people and the planet.
This new "science for action" represents a fundamental change in how we approach environmental challenges. Rather than simply documenting environmental decline, researchers are now working at the local landscape scale to implement and test real-world solutions that address pressing issues like climate change, biodiversity loss, and community vulnerability1 . From California's progressive climate policies to urban gardens in bustling cities, scientists are conducting bold experiments to determine how nature itself can be one of our most powerful allies in creating resilient communities.
of cities are implementing nature-based solutions
increase in community participation since 2020
more cost-effective than traditional approaches
When we face environmental challenges, our first instinct might be to build concrete sea walls or complex drainage systems. But what if the best solution was already present in nature? Nature-based solutions are exactly what the name suggests: approaches that work with nature, rather than against it, to solve societal challenges8 .
These strategies include conservation, restoration, and ecosystem management that deliver multiple benefits for people and the environment8 .
Think of a restored wetland that not only provides habitat for wildlife but also absorbs floodwaters during storms and filters pollutants from water. Or consider an urban park that cools the surrounding neighborhood during heatwaves while giving residents access to green space.
The key advantage of these approaches is their ability to address multiple challenges simultaneously—what scientists call "co-benefits." A single nature-based project can potentially help conserve biodiversity, mitigate climate change through carbon sequestration, help communities adapt to climate impacts, and improve human well-being all at once8 .
Protecting and restoring habitats for wildlife while maintaining ecosystem services.
Using natural systems to buffer communities against climate impacts like flooding and heatwaves.
California has become an important testing ground for nature-based solutions, implementing progressive policies that make it a climate leader in the United States and globally8 . The state's "30×30" plan aims to preserve 30% of its land and waterways by 2030, creating a natural buffer against climate impacts while protecting valuable habitats8 .
The state has already protected 24% of its land and coastal waters toward the 2030 goal, with focused efforts on biodiversity hotspots and vulnerable communities.
Protected toward goal
What makes California particularly interesting to scientists is how different communities are experimenting with various approaches to implement these nature-based strategies. Researchers analyze local planning documents to understand what works and why, examining the enabling conditions that allow some projects to succeed while others struggle8 .
Community buy-in and advocacy are essential for the long-term success of nature-based projects. Local stakeholders provide valuable knowledge, resources, and political support.
Financial resources to implement projects, including initial capital investments and long-term maintenance funding, are critical for project viability.
Partnerships across jurisdictional boundaries allow for coordinated action at the landscape scale, addressing ecological processes that transcend political boundaries.
These experiments range from identifying priority conservation areas to establishing strong land trust networks and developing legal frameworks that support clean energy alliances8 . Each approach offers valuable insights into how we can effectively work with nature to address climate challenges.
Implementing nature-based solutions is only half the battle—understanding their impact is equally important. Scientists have developed sophisticated methods to measure whether these approaches are delivering on their promises, particularly when it comes to biodiversity.
Monitoring biodiversity across large areas presents significant challenges. Traditional methods involving intensive fieldwork by ecological specialists are scientifically rigorous but costly and difficult to scale. Today, researchers are adopting innovative, tiered approaches that combine high-tech tools with community involvement:
| Tool | Function | Application Example |
|---|---|---|
| eDNA Kits | Detect species presence through environmental DNA left in soil or water | Measuring aquatic biodiversity in restored wetlands |
| Acoustic Sensors | Monitor bird and frog populations through their calls | Tracking species return to reforested areas |
| Remote Sensing | Use satellites to map habitat extent and condition | Monitoring changes in vegetation across large landscapes |
| Citizen Science Platforms | Engage volunteers in data collection using mobile apps | Documenting species observations during community bioblitzes |
Platforms like iNaturalist and Mozaic Earth exemplify this approach by combining satellite data with community inputs, enabling real-time biodiversity tracking while empowering local stakeholders to participate in monitoring5 . This democratization of data collection reduces costs and builds local capacity—key factors for long-term project success.
Rather than relying on a single measurement, scientists now use a "basket of metrics" approach that provides a more comprehensive picture of ecosystem health. This method typically includes:
How much habitat exists and its quality, measured through remote sensing and field validation.
The variety and number of species present, assessed through surveys, camera traps, and acoustic monitoring.
How well the ecosystem performs processes like water filtration, carbon sequestration, and nutrient cycling.
This multi-faceted approach is considered especially robust because it captures the complexity of ecosystems more effectively than single-indicator methods.
Based on survey of 150 conservation projects measuring effectiveness in detecting ecological changes.
One outstanding example of science for action at the local scale is the City Nature Challenge, an international community science event that has generated more than 12 million observations worldwide since its inception5 . This event mobilizes people across hundreds of cities to document nature in their urban environments using the iNaturalist app.
Observations
Species
Participants
Rare Species
Observations
Species
Participants
Rare Species
"Perhaps most inspiring was the preschool class that discovered a Brahminy blindsnake—a species often mistaken for an earthworm—demonstrating how even the youngest community members can contribute meaningful scientific data5 ."
At the local level, the Challenge reveals fascinating ecological stories. In Los Angeles County, participants documented everything from a rare Hemphill's Westernslug (one of the county's only native slugs) to a San Clemente Island Fox (a threatened subspecies endemic to the Channel Islands)5 . These observations contribute valuable data that help scientists track changes in urban biodiversity and identify areas in need of conservation action.
What does it take to conduct research at the landscape scale? Here are some essential "research reagent solutions" and tools that scientists use in this field:
| Tool/Solution | Function | Application in Landscape Science |
|---|---|---|
| Stratified Random Sampling | Ensures representative data collection across different habitat types | Studying how biodiversity varies across environmental gradients |
| Permanent Sample Plots | Provide high-quality, long-term data from fixed locations | Tracking ecological changes and measuring intervention impacts |
| Model-Based Inference | Uses statistical models to extrapolate data from sampled to unsampled areas | Predicting biodiversity patterns across large areas where fieldwork isn't feasible |
| Systematic Conservation Planning (SCP) | Provides framework for identifying priority conservation areas | Determining where to focus limited resources for maximum impact |
Engage stakeholders to define the environmental challenge and desired outcomes.
Use appropriate tools from the scientist's toolkit to establish current conditions.
Develop and deploy nature-based interventions tailored to local conditions.
Continuously assess effectiveness and adjust approaches based on results.
These tools enable researchers to gather robust data across large and complex landscapes, providing the evidence needed to guide effective conservation actions and policy decisions.
The journey toward nature-positive futures requires continued innovation in how we study, implement, and monitor solutions at the landscape scale. Emerging approaches include:
Classifying projects based on data integrity, allowing for appropriate levels of investment and confidence in results.
Strategies that balance scientific precision with practical constraints.
Alignment with frameworks like TNFD, helping businesses and governments integrate nature into decision-making.
What makes "science for action" so compelling is its fundamentally hopeful premise: we don't just have to document environmental decline; we can actively test and implement solutions. From the global collaboration of the City Nature Challenge to California's policy experiments, researchers and communities are proving that we can work with nature to address our most pressing environmental challenges.
The next time you see a local restoration project or participate in a community science event, remember—you're not just looking at a simple conservation effort. You're witnessing science in action, where landscapes become laboratories and data becomes the foundation for building a more resilient future.
To get involved in local landscape science, look for community science programs through natural history museums, search for "bioblitz" events in your area, or download apps like iNaturalist to start contributing valuable data about your local environment.