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Effects of climate change

Characteristics and behaviors of organisms and earth systems that are modified as a result of changes in global, regional, or local climate.

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A Climate Trend Analysis of Burkina Faso [More info]: Summer rains have remained steady over the past 20 years, but are less than historic highs. Temperature has increased, and while the farmland per person is decreasing, population growth has been offset with improved yields.
A Climate Trend Analysis of Niger [More info]: While summer rains have increased during the past 20 years, temperatures have increased as well, amplifying the effects of droughts. Crop yields are low but the population is growing, pointing to rising food insecurity.
A climate trend analysis of Chad [More info]: Long-term reduction in rainfall and increasing temperature threaten Chad's future food production prospects; combined with rapid population growth and zones of substantial conflict, increasing numbers of people will be at risk.
A climate trend analysis of Ethiopia [More info]: Recent trends in March-June, June-September, and March-September rainfall and temperature, identifying significant reductions in rainfall and increases in temperature over time in this area.
A climate trend analysis of Kenya-August 2010 [More info]: Crop areas in west central Kenya are affected by decline in rainfall over several decades; the effects may be exacerbated by overall warming in the region
A climate trend analysis of Mali [More info]: Summer rains have remained steady for the past 20 years, but are below the long-term average. Current population and agricultural trends indicate increasing yields have offset population expansion, keeping per capita cereal production steady.
A climate trend analysis of Senegal [More info]: Modest declines in rainfall, accompanied by increases in air temperatures, declining farmland per person, along with trends in population and agriculture could lead to a 30% reduction in per capita cereal production by 2025.
A climate trend analysis of Sudan [More info]: The data shown here depict drying trends in one of the world's most food insecure regions. Decreasing rainfall since 1980 accompanied increases in air temperature greater than global warming.
A climate trend analysis of Uganda [More info]: Long-term reduction in rainfall and increasing temperature threaten Uganda's future food production prospects; combined with rapid population growth these factors could increase the number of people who are at risk during the next 20 years.
Changing Arctic Ecosystems-Measuring and forecasting the response of Alaska's terrestrial ecosystem to a warming climate [More info]: Combining genetic data with current and predicted climate scenarios, we are modeling the predicted future distributions of wildlife populations in the Arctic and identifying key environmental variables that determine important animal habitat.
Climate Variability and Change [More info]: This fact sheet focuses on climate variability and change and how USGS research can strengthen the Nation with information needed to meet the challenges of the 21st century.
Climatic changes and effect on wild sheep habitat [More info]: Preliminary results indicate significant changes in Dall sheep diet accompanying vegetation changes and upslope retreat of glaciers.
DOI Climate Science Centers--Regional science to address management priorities [More info]: Locations of USGS science centers focused on climate change, with a brief description of the scientific focus and regional partner organizations.
Detecting Evidence of Climate Change in the Forests of the Eastern United States [More info]: The relation between seasonal forest change and weather is being tracked and analyzed by comparing precise field observations to regional patterns shown in long-term satellite imagery.
Integrated monitoring of ecological conditions in wetland-upland landscapes [More info]: Landscapes of interwoven wetlands and uplands offer a rich set of ecosystem goods and services. Changes in climate and land use can affect the value of those services. We study these areas to understand how they may be changing.
National Climate Change and Wildlife Science Center [More info]: Coordinates our efforts to address challenges resulting from climate change and to empower natural resource managers with rigorous scientific information and effective tools for decision-making.
Polar bear and walrus response to the rapid decline in Arctic sea ice [More info]: The Arctic is warming faster than other regions of the world due to positive climate feedbacks associated with loss of snow and ice. The USGS has modeled the future responses of polar bear and Pacific walrus populations to this environmental change.
Studying ocean acidification in the Arctic Ocean [More info]: New synoptic data from samples collected in the Arctic Ocean and insights into the patterns and extent of ocean acidification. This foundational geochemical information will help us to understand potential risks to Arctic resources.
U.S. Department of the Interior South Central Climate Science Center [More info]: Explains the goals and strategies to be pursued by this organizational unit of the USGS along with partners and stakeholders.
USGS science for the Nation's changing coasts; Shoreline change assessment [More info]: Shorelines are always changing, yet we use these areas heavily. This shows what we measure and how, to help adapt to changing coastal zones.
Using observed warming to identify hazards to Mozambique maize production [More info]: Over 30 years of substantial warming, the timing of life cycle events in maize here has changed, threatening the crop yield by exposing the plant at sensitive phases in its life cycle to increased heat and drought, and lowering the weight of its grains.
Watershed scale response to climate change--Black Earth Creek Basin, Wisconsin [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Cathance Stream Basin, Maine [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Clear Creek Basin, Iowa [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--East River Basin, Colorado [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Feather River Basin, California [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Flint River Basin, Georgia [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Naches River Basin, Washington [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Pomperaug River Watershed, Connecticut [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Sagehen Creek Basin, California [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Sprague River Basin, Oregon [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Starkweather Coulee Basin, North Dakota [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.
Watershed scale response to climate change--Trout Lake Basin, Wisconsin [More info]: Mathematical models predict overall streamflow, runoff, subsurface flow, groundwater flow, and soil moisture in this area in response to four different greenhouse gas emission scenarios.

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