Development of NCA5 continued throughout 2021, with many important milestones. NCA5 builds on the lessons learned from previous assessments, while aiming to enhance the diversity of its authors and contributors, address emerging priority topics, and enhance public engagement processes. In the spring and summer of 2021, the NCA5 Federal Steering Committee selected the report’s federal coordinating leads and chapter leads. Chapter leadership then selected a diverse group of expert contributors—nearly 500 authors and 200 technical contributors—representing all 50 states, Puerto Rico, the U.S...
Highlights
Since 1989, the U.S. Global Change Research Program (USGCRP) has submitted annual reports to Congress called Our Changing Planet. The reports describe the status of USGCRP research activities, provide progress updates, and document recent accomplishments
In particular, Our Changing Planet highlights progress and accomplishments in interagency activities. These highlights represent the broad spectrum of USGCRP activities that extend from Earth system observations, modeling, and fundamental research through synthesis and assessment, decision support, education, and public engagement. Highlights describe the state of science at the time of publication of each yearly report, and may not reflect more recent advances in understanding. The date of publication of the source report is noted on each highlight page.
The Caribbean Drought Learning Network (CDLN) is a peer-to-peer network that links climate service providers, climate researchers and resource managers to share knowledge and strengthen collaboration and communication in drought research and management in Puerto Rico and the U.S. Virgin Islands, where drought constrains agricultural production, impacts the economy, and diminishes quality of life. The goal of this network is to produce and share information, lessons learned, and needs...
A major challenge for natural resource managers in the western United States is anticipating and planning for ecosystem changes caused by complex interactions among climate, wildfire, and vegetation. The Southwest FireCLIME research partnership brings scientists and managers together to support decision-making processes around fire management in a changing climate. The project synthesized current knowledge of regional climate–fire–ecosystem dynamics through a formal science synthesis and annotated bibliography, forecasts of future...
The Adaptive Silviculture for Climate Change (ASCC) project is a collaborative effort to help guide forest managers in preparing forest ecosystems for climate change. Scientists, land managers, and a variety of partners have developed seven initial trial sites as part of this multi-region study to research long-term ecosystem responses to a range of climate change adaptation actions. USDA-FS scientists partnered with universities and local, state, and federal agencies (including DOI and USACE) to develop...
The Regional Invasive Species and Climate Change (RISCC) Management Networks are working to reduce the compounding effects of invasive species and climate change by synthesizing relevant science, communicating decision-makers’ needs to researchers, building stronger scientist–stakeholder communities, and conducting priority research. The RISCC effort started in the Northeast region in 2016 with a collaboration among USGS researchers, university scientists, and state agency partners. It has since...

A journal special issue highlights advances in the science of protecting species and ecosystems from climate change impacts.
An increasingly important climate change adaptation strategy is to focus conservation on climate change refugia, or areas that are relatively buffered from contemporary climate change. Protection and management of climate change refugia can help shelter native species and ecosystems from current climate change impacts and provide longer-term havens that protect valued ecological and sociocultural resources. The U.S. Geological Survey and EPA,...

The Climate Change Response Framework provides landowners with adaptation options to address climate change risks to forests.
Climate change increases uncertainty about future conditions affecting land and natural resources, creating new challenges for land managers working to sustain healthy ecosystems and ecosystem services. In 2020, the Northern Institute of Applied Climate Science (NIACS) and the USDA Northern Forests Climate Hub worked side-by-side with land managers to advance regionally specific climate change adaptation strategies. The NIACS...

A new scientific assessment provides information on the spread and control of invasive species for land managers.
The spread of invasive species is recognized as a major driver of biodiversity loss and a source of substantial economic and environmental damage. Global environmental changes, including climate change and land use change, continue to influence how invasive species spread and interact with ecosystems, presenting new and ongoing challenges for land managers. A recent USDA Forest Service (USDA-FS) ...

The Drought Learning Network supports knowledge exchange on drought management in the U.S. Southwest.
The Drought Learning Network (DLN) brings together drought management leaders and resource managers to support knowledge sharing and improve collaboration around building resilience among communities impacted by drought in the U.S. Southwest, one of the hottest and driest regions of the world. The DLN was created by drought management leaders from the USDA Southwest Climate Hub, the National...

Collaborative studies among scientists and decision-makers are identifying strategies to meet current and future water demands.
The western United States faces growing water challenges. Drought, population change, aging infrastructure, and ecosystem needs all strain existing water and power infrastructure, and future climate change is expected to further...