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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.

Observations, Land Use & Land Cover, Ecosystems & Biodiversity, Arctic

Monitoring change in Alaskan forests

G-LiHT measurements for an area within Bonanza Creek Experimental Forest near Fairbanks, Alaska.

Scientists are using aerial and ground survey methods to measure change in Alaska’s interior forests and its impact on ecosystem services. 

The boreal forests of interior Alaska are changing rapidly as the climate warms. Wildfires are more frequent and more severe, and declines in growth of spruce trees may be driving a shift towards ecosystems normally found in warmer climates. These changes can have significant impacts on the quality of wildlife habitat and ecosystem services that support the subsistence economies of many native Alaskan...

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Observations, Land Use & Land Cover, Ecosystems & Biodiversity

Measuring ecosystem response to changing environments in Pacific Northwest forests

Scientists are combining satellite remote sensing and ground survey data to better understand the impacts of climate change and other disturbances on the health of Pacific Northwest forests and the ecosystem services they provide. 

Pacific Northwest forests are sensitive to temperature and drought stress and face increased vulnerability to insect pests, diseases, and fires in a changing climate. The frequency and severity of climate-related forest disturbances are expected to continue to increase over the 21st...

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Observations, Modeling, Water Resources, Land Use & Land Cover, Agriculture & Food, Extreme Events

Mapping Fallowed Farmland During Drought

The greenness of croplands in January is shown relative to the 13-year average from NASA MODIS records. Satellite imagery can be a powerful tool for understanding the impacts of drought on agricultural lands. (Source: NIDIS Newsletter, April 2014)

The severe, sustained drought affecting the Central Valley of California has caused a shortage of water for irrigation and crop production. The effect of this shortage is most immediately evident as an increase in the extent of fallowed farmland (or land taken out of agricultural production), which in turn serves as a proxy for socioeconomic impacts. Decision makers can use information about fallowed land to better understand the severity of drought impacts and to support requests for USDA drought disaster designations or emergency proclamations. USDA

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