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.

An example indicator featured on the USGCRP Indicator Platform.

Climate indicators show trends over time in key aspects of our environment, such as greenhouse gas levels in the atmosphere, temperatures across land and sea, and the extent of Arctic sea ice, as well as metrics of social or economic exposure to the impacts of climate variability and change. Indicators are based on long-term, consistently collected data and can be used to assess risks and vulnerabilities from a changing climate and to inform response actions. USGCRP’s Indicators Interagency Working Group (IndIWG) leverages existing agency research, data, and indicators in support of...

The U.S. research centers that develop climate and Earth system models and the U.S. scientific community are key participants in long-running collaborative efforts to improve knowledge on climate change. A number of major interagency activities supporting improvements in climate modeling took place in 2019.

Most prominently, the World Climate Research Programme Coupled Model Intercomparison Project (CMIP) is currently in its sixth phase (CMIP6). The earlier phases of CMIP experiments have provided the research community...

A national system of physical, ecological, and societal indicators is considered a foundational component of the sustained assessment process, serving to help users understand the changing environment, assess risks and vulnerabilities, and make informed decisions to build resilience to change. A 2019 Federal–academic workshop sought to advance the development of socio-environmental systems indicators of climate change to support adaptation and resilience decisions at various scales in the United States.

This work was supported by the National Socio-Environmental Synthesis Center (...

Satellite observations show significant declines in Arctic sea ice cover in recent decades as the climate has warmed,^[1] with impacts on fish and wildlife habitats that are important for subsistence, recreation, and tourist activities in the region. Retreating sea ice also contributes to increased storm surge, coastal flooding, and coastal erosion.^[2] Arctic sea ice plays a key role in moderating climate within and beyond the region, and understanding sea ice change is critical to projections of future...

USGCRP’s International Activities Interagency Working Group (IAIWG) convened its first international and interagency workshop in December 2018, bringing together representatives from System for Analysis, Research and Training (START), Future Earth, and the World Climate Research Programme (WCRP). These three international programs receive funding through USGCRP to support their activities and to advance USGCRP’s international mandate. USGCRP was represented by ten Federal agencies as well as USGCRP staff. The workshop’s goals were to enhance awareness of mutual priorities, investments, and...

Methane emitted from thawing permafrost below an Arctic thermokarst lake is trapped in bubbles of many different sizes and shapes as the ice grows during the winter.

Long-frozen northern soils known as permafrost contain one of the world’s largest stores of organic carbon. This reservoir is stable while soils are frozen, but as permafrost thaws, decomposition of biomass by microbes produces the heat-trapping gases carbon dioxide and methane, returning soil carbon to the atmosphere where it contributes to climate change. Permafrost carbon stores are expected to be increasingly vulnerable to decomposition as the climate continues to change, leading to a feedback cycle of further warming and permafrost thaw.^[1]...

A researcher launches a radiosonde instrument attached to a weather balloon to capture detailed atmospheric data.

The Southern Ocean surrounding Antarctica is the stormiest place on Earth, marked by heavy cloud cover that helps determine how much of the sun’s energy reaches Earth’s surface. Due in part to the scarcity of field data from the region, current climate models have difficulty reproducing the behavior of clouds over the Southern Ocean, which in turn affects how well they can simulate current and future climate. Motivated by these data limitations, an international multi-agency effort collected atmospheric and oceanographic data via ship-, aircraft-, and island-based instrumentation in a...

The ability to archive and share datasets generated by field, experimental, and modeling activities is a critical component of Earth system and global change research. Several recent interagency efforts aim to support advances in global change data access, synthesis, and use.

DOE recently launched the Environmental Systems Science Data Infrastructure for a Virtual Ecosystem (ESS-DIVE), a publicly accessible archive of Earth and environmental science data generated by DOE-supported ecosystems research...

USGCRP agencies and interagency groups played a leading role in the development of a Belmont Forum international Collaborative Research Action (CRA) launched in April 2019, focused on issues at the intersection of climate, environment, and human health.

In addition to an international scoping workshop organized by the Interagency Crosscutting Group on Climate Change and Human Health (CCHHG) and International Activities Interagency Working Group (IAIWG) in April 2018, USGCRP member agencies (including NIH, NOAA, and NSF) participated in a year-long,...

The January 2016 melt event on the West Antarctic ice sheet was captured by satellite and surface observations.

An observing campaign on the West Antarctic Ice Sheet is improving understanding of influences on recent ice loss and the implications for future sea level rise.

Antarctica holds the largest reservoir of ice on Earth and is significant contributor to sea level rise. The West Antarctic Ice Sheet, once considered relatively stable, has shed an increasing amount of ice...

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Highlights

An interagency platform highlights important indicators of change

Modeling efforts drive advances in projections of future climate change

A collaboration explores socio-environmental systems indicators for climate change adaptation and resilience

An observing network tracks changes in Arctic sea ice cover

USGCRP enhances cooperation among international global change science organizations

Scientists investigate the effects of carbon emissions from thawing permafrost soils

Unprecedented observations in the Southern Ocean help improve global climate models

New data infrastructure helps build a virtual ecosystem of Earth science information

Interagency efforts help lead a new international climate and health research effort

Investigating ice sheet change in Antarctica