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.
Strong engagement efforts help ensure that USGCRP assessment products are relevant and accessible to users.
USGCRP recently finalized the fourth installment of the National Climate Assessment (NCA4). Volume I (the Climate Science Special Report, see Highlight 16) was released in November 2017, and Volume II (Impacts, Risks, and Adaptation in the United States) was released in late 2018. A technical input to the sustained assessment process, the Second State...
A report on the status of America’s forests and rangelands provides a baseline for monitoring future change and its effect on ecosystem services and livelihoods.
Expanding populations, increased urbanization, land use change, and climate change continue to affect American forests and rangelands. Climate change and natural disturbances will alter forest and rangeland ecosystems and affect their ability to provide ecosystem services such as water quality protection, removal of pollutants from the atmosphere, and outdoor recreation. The most recent...
USGCRP co-led an international group of funders and implementers in initiating development of a collaborative research action.
The Belmont Forum is an international partnership between national research funding agencies and international science organizations focused on advancing transdisciplinary global change science and accelerating its application. Its Collaborative Research Actions (CRAs) combine natural science, social science, and stakeholder perspectives to produce knowledge for understanding and responding to global environmental change. In November...
USGCRP efforts support building global change research capacity in developing countries.
USGCRP provides support to help sustain the core operations of three international science organizations: the World Climate Research Program (WCRP), which is the primary coordination mechanism for international research on the climate system; System for Analysis, Research and Training (START), which provides opportunities for research, education, and training to scientists, policymakers, and practitioners in developing countries; and Future Earth...
Interagency efforts are engaging citizens in forecasting and observation of mosquito threats.
Global Learning and Observations to Benefit the Environment (GLOBE) is an international science and education program that provides students and the public worldwide with the opportunity to participate in data collection and the scientific process and contribute meaningfully to our understanding of the Earth system and global environment. In 2017, the U.S. Department of State (DOS) partnered with NASA to leverage GLOBE in engaging hard-to-reach populations in...
The oceans have absorbed almost all of the excess heat generated by increasing atmospheric greenhouse gas concentrations and a large fraction of anthropogenic carbon dioxide, with profound implications for ecosystems and the climate system. Ship-based hydrographic surveys are the only current means for simultaneously measuring physical, biological, and biogeochemical properties of the global oceans from the surface to the seafloor and are a crucial resource for understanding ocean change and its role in the climate system. Building on global hydrographic surveys underway since the...
Atmospheric composition and circulation over the tropical western Pacific Ocean play important roles in the Earth’s climate system. In this remote region, rising air heated by some of the warmest seawater in the world moves gases produced by ocean organisms and other chemicals to higher altitudes, where water vapor and ozone exert their strongest influence on the climate. As the climate warms, the intensity of this transport mechanism will increase and may contribute to large-scale changes in atmospheric composition. Details of these dynamics, including how they vary over time and space,...
Over the Great Plains region of the United States, summertime thunderstorms often occur after sunset. Much of this nighttime rainfall is caused by large, organized storm systems and plays a critical role in the hydrology and agriculture of the region, especially over the more arid western Great Plains. During the summer months, these nighttime storm systems provide 30-70% of the region’s precipitation and can also cause severe weather, including flash floods, intense damaging winds, and large hail. Current weather and climate models have difficulty predicting the onset, location, frequency...
Northern peatlands contain vast organic carbon stocks in danger of release into the atmosphere as greenhouse gases as the climate warms, leading to a positive-feedback cycle of further warming and carbon release. Through field experiments in a Minnesota peat bog, DOE’s Oak Ridge National Laboratory, the USDA Forest Service (USDA-FS), and EPA are collaborating alongside university partners to test how peatland ecosystems respond to conditions that simulate the atmosphere of the future, and improve the ability to predict the release of stored carbon and its impact on climate warming. The...
As of 2010, urban areas are home to more than half of the world's population, produce at least 70% of carbon-dioxide emissions from fossil fuels, and emit a significant amount of anthropogenic methane, but represent a small fraction of the Earth’s land surface. Currently, greenhouse gas emissions estimates for many cities are either unavailable or are generated using self-reported data from particular sectors, and contain significant uncertainties. Although methods for comprehensive measurement of urban emissions have been tested in smaller cities with stable emissions, these techniques...