Gabon

Côte d'Ivoire

Republic of the Congo

Liberia

Sierra Leone

Guinea

Nigeria

Uganda

South Africa

Democratic Republic of Congo

Sudan

South Sudan

Sub-Saharan Africa

Ebola outbreaks from 1976 to 2022, primarily concentrated in central and western Africa, including the Democratic Republic of Congo, Uganda, and surrounding regions.

Confirmed and probable cases of Ebola

Ebola Outbreaks, 1976–2015

Ebola Outbreaks, 1976–2022

Canada

United States

North America

A map highlights the principal aquifers across North America, categorized into three types.

Locations of various aquifers in North America, including consolidated rock aquifers, which are made up of mostly volcanic rocks in the Northwest and mostly sandstone and limestone elsewhere; combination aquifers, which are sand and gravel aquifers overlying productive rock aquifers; and productive aquifers, which have a 0.4 liter/second potential

Principal Aquifers

Consolidated rock aquifers, shaded in green, are predominantly found in northern Canada, including regions like Yukon, Northwest Territories, and Nunavut, and extending into parts of British Columbia, Alberta, Saskatchewan, Manitoba, and Newfoundland and Labrador. Also found in the northern Canada regions like Victoria Island, Parry Island, Canadian Arctic Archipelago, and Ellesmere Island, also extending to Southern regions like Winnipeg, Ottawa, and Halifax. Combination aquifers, shaded in orange, are primarily located in the central and eastern United States, covering areas in states like Texas, Oklahoma, Kansas, Nebraska, and South Dakota, and extending to parts of the Midwest, Northeast, and Southeast, including New York, Pennsylvania, and Florida. Productive aquifers, also shaded in light green, are found in regions of Florida and across the western United States near Oregon.

Geosystems: Intro to Physical Geography

Anthropogenic Biomes

Areas at Risk of Soil Degradation

Average Annual Precipitation

Biomes

Climate Zones

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Worst-Case Projections (NASA)

Insolation

Land Cover

Major Soil Orders

Prevailing Agricultural Practices

World Elevations

Ebola Outbreaks, 1976–2022	Principal Aquifers
Ebola Outbreaks, 1976–2022	Consolidated rock aquifers	Combination aquifers	Productive aquifers
4.083333333333333
	0.116%	0.105%	0.166%