Take a look at our science teams accomplishments last year: - 🌲 🌿 Reports: Tablets & airborne mapping save time and money to prepare forests for ecological thinning; protection restores mesquite bo...

TNC preserves are living laboratories for scientists to test theories, conduct pilot projects and learn from effects of management actions. Read the five-year report that catalogs this research.

Land managers across the West are finding pockets of cool, wet conditions, allowing them to safely reduce future fire risk.

Tree rings offer scientists a history book that lays out centuries of forest health. This warm, dry year is poised to leave a lasting mark.

A carefully planned prescribed fire at TNC's Canelo Hills Cienega Preserve was carried out to safeguard one of the rarest plants in the world: the Canelo Hills ladies’-tresses orchid.

TNC and partners are working in three Metro Phoenix neighborhoods to identify strategies to reduce heat and improve comfort and quality of life for residents.

The U.S. EPA's decision to repeal the Endangerment Finding will limit the government's ability to regulate emissions of carbon dioxide and other greenhouse gases under the Clean Air Act.

A tree’s rings can tell a much deeper story than just the number of years it has lived.

In 2025, TNC released Becoming Bosque: Testing the benefits of mesquite restoration, a report that details learnings from restoration efforts at TNC's Middle San Pedro River Preserve.

In 2025, TNC Forest Program staff, a TNC Scientist, and partners published Innovative Tree Designation Methods for a Complex Silvicultural Treatment in the Journal of Forestry.

Under the careful tending of stewards, a forest that was once matted with a dense understory of branches, stunted trees and anemic shrubs opens up once more.

The pace and scale of ecological restoration in the US Southwest needs to increase dramatically, but conventional, paint-based tree marking has proven to be a significant bottleneck in the treatment p...

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TNC's conservation science in AZ engages stakeholders and expertise in applied science and policy to develop new ideas and tools to help solve the most pressing challenges affecting people and nature.

TNC's conservation science in AZ engages stakeholders and expertise in applied science and policy to develop new ideas and tools to help solve the most pressing challenges affecting people and nature.