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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. 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.

Implementing Data Services for Development

Implementing Data Services for Development

SERVIR—meaning “to serve” in Spanish—combines NASA’s Earth-observations data and tools with USAID’s expertise in international development, supporting the use of geospatial technologies to help decision makers in developing countries respond to environmental change. Through the SERVIR network, experts at regional hubs in Eastern and Southern Africa, Hindu Kush-Himalaya, and the Mekong River Basin partner with local decision makers and U.S.-based scientists to create new datasets, maps, and decision-support tools related to climate...

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Oceans

Connecting the Remote Ocean to Global Climate

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,...

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Modeling

Studying Thunderstorms by Night

Studying Thunderstorms by Night

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...

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Studying Northern-Ecosystem Response to a Changing Climate

Studying Northern-Ecosystem Response to a Changing Climate

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...

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Tracking Earth’s Carbon and Methane Budgets

Tracking Earth's Carbon and Methane Budgets

Founded in 2001, the Global Carbon Project (GCP) is an international scientific collaboration investigating the biophysical and human components of the global carbon cycle, the interactions between them, and their response to a changing climate. The GCP tracks sources and sinks of carbon dioxide and methane, the two most important greenhouse gases directly emitted by human activities—providing annual updates on emissions trends, atmospheric concentrations, and sources of uncertainty, in a format accessible to policymakers....

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Modeling

Improving Climate Predictability

As climate change increasingly impacts society and ecosystems, demand for reliable information about climate conditions now and in the future is growing. Climate research is conducted by two distinct communities, one working on climate forecasts for the near-term future and the other on climate-change projections over decades to centuries. Despite these different foci, the boundaries between these two communities increasingly overlap, and they share many common methods and challenges. Enhanced collaboration across modeling centers and communities can help create more valuable climate-...

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Human Health, Extreme Events

Reducing the Health Risks of Extreme Heat

Reducing the Health Risks of Extreme Heat

Awareness surrounding the connection between climate change and human health is growing. USGCRP’s The Impacts of Climate Change on Human Health in the United States: A Scientific Assessment projected a potential increase of “thousands to tens of thousands of premature heat-related deaths in the summer” by 2100, driven by longer, more frequent, and more intense heat waves.

The National Integrated Heat Health Information System (NIHHIS), launched...

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Extreme Events

Building Regional Collaboration for Drought Resilience

Building Regional Collaboration for Drought Resilience

In 2015, drought impacts in the Western United States cost an estimated $4.5 billion. Impacts included the fallowing of hundreds of thousands of acres of farmland, excess groundwater pumping, and the exacerbation of wildfire conditions, which contributed to fires that caused the highest annual total of U.S. acreage burned since record-keeping began in 1960. As these impacts become more prevalent under a changing climate, preparedness, including an early-warning system for drought conditions, is increasingly important in many parts of the United States. The...

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Extreme Events

Successfully Predicting the Large 2015/2016 El Niño

Successfully Predicting the Large 2015/2016 El Niño

The El Niño/Southern Oscillation (ENSO) phenomenon is a periodic fluctuation of sea-surface temperatures and atmospheric pressure across the tropical Pacific Ocean. During the El Niño phase of the cycle, the eastern tropical Pacific Ocean warms substantially. This can cause significant short-term increases in global-average surface temperatures, and through atmospheric teleconnections, a strong El Niño event can affect weather patterns around the globe. A particularly strong El Niño emerged during the winter/spring season of...

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Extreme Events

Providing Drought Information to Farmers

Providing Drought Information to Farmers

Since 2014, Jamaica has experienced one of its worst droughts in a decade, and the fourth worst on record since the 1970s. The drought has profoundly affected the agricultural sector: agricultural production fell by roughly 50% between 2013 and 2014. In response, Jamaica's Rural Agricultural Development Authority (RADA) and the Jamaican Meteorological Service (JMS), in collaboration with the International Research Institute...

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