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Regions Affected: Worldwide | Brief Description: Long-term alteration in temperature and typical weather patterns in a place.

Regions Affected: Worldwide, notably in biodiversity hotspots | Brief Description: The reduction or loss of biological diversity typically as a result of human activities.

Regions Affected: West Africa, East Asia | Brief Description: Discarded electronic appliances such as mobile phones, computers, and televisions, which contain toxic materials.

Regions Affected: Gulf of Mexico, Baltic Sea, Chesapeake Bay | Brief Description: Areas in the world's oceans and large lakes that suffer from hypoxia, which means that they contain low levels of dissolved oxygen.

Regions Affected: Industrialized countries, notably Northeastern United States, Europe | Brief Description: Any form of precipitation with acidic components that falls to the ground from the atmosphere.

Regions Affected: Industrial Regions, Developing Countries | Brief Description: Unwanted or residual material generated during industrial operations, often hazardous and requiring proper disposal.

Regions Affected: Worldwide, Notable in North America, Australia | Brief Description: Species that are non-native to an ecosystem and may cause harm to the environment, economy or human health.

Regions Affected: Sub-Saharan Africa, California, Middle East | Brief Description: A prolonged period of abnormally low rainfall, leading to a shortage of water.

Regions Affected: China, Brazil, Canada, the United States, Russia | Brief Description: Energy derived from the movement of water in rivers and streams, traditionally via dams.

Regions Affected: Urban Areas, China, India | Brief Description: The presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials.

Regions Affected: Middle East, Northern Africa, Central Asia | Brief Description: The lack of sufficient available water resources to meet the demands of water usage within a region.

Regions Affected: Worldwide, notably the United States and Brazil | Brief Description: Organisms whose genetic material has been artificially manipulated in a laboratory through genetic engineering.

Regions Affected: Worldwide, especially coastal and coral reef areas | Brief Description: The ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO2) from the atmosphere.

Regions Affected: Worldwide | Brief Description: The consumption of a resource faster than it can be replenished, including natural resources such as water, fossil fuels, and trees.

Regions Affected: United States, Canada, United Kingdom | Brief Description: The process of injecting liquid at high pressure into subterranean rocks, boreholes, etc., to force open existing fissures and extract oil or gas.

Regions Affected: China, the United States, India | Brief Description: The process of extracting coal from the ground, and its associated environmental impacts.

Regions Affected: Worldwide, notably in regions with high insolation like North Africa, Middle East, Southwestern United States | Brief Description: Energy from the Sun that is converted into thermal or electrical energy.

Regions Affected: Worldwide, notably in oceans and along coasts | Brief Description: The accumulation of plastic objects in the Earth's environment that adversely affects wildlife, wildlife habitat, and humans.

Regions Affected: Arctic and Antarctic | Brief Description: The reduction of the ice caps due to global temperature rises, having an impact on global sea levels and ecosystems.

Regions Affected: Appalachian region, United States | Brief Description: A form of surface mining that involves the mining of the summit or summit ridge of a mountain.

Regions Affected: Urban areas worldwide | Brief Description: The brightening of the night sky caused by street lights and other man-made sources, affecting observation of stars and planets.

Regions Affected: Areas with high levels of uranium in their soil, including parts of the United States, Europe, and Asia | Brief Description: Exposure to radon - a natural radioactive gas, which can accumulate indoors and is a risk factor for lung cancer.

Regions Affected: Sub-Saharan Africa, Central Asia, Australia | Brief Description: The process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.

Regions Affected: Worldwide | Brief Description: The ongoing transition of energy production and consumption systems from fossil-based to zero-carbon by the middle of the 21st century.

Regions Affected: Worldwide, notably Europe, North America, India | Brief Description: Periods of excessively hot weather, which may be accompanied by high humidity, especially in oceanic climate countries.

Regions Affected: Worldwide, including specific species like the Amur Leopard, Sumatran Elephant, and Sea Turtles | Brief Description: Species that are at risk of extinction due to sudden rapid decrease in their population or loss of their critical habitat.

Regions Affected: Polar Regions, Mountain Ranges | Brief Description: The retreat and reduction in volume of glaciers around the world due to rising temperatures.

Regions Affected: Florida Everglades, South-East Asia | Brief Description: The deterioration of wetlands causing a loss of the function and services they provide to the environment.

Regions Affected: Worldwide, especially areas undergoing urbanization | Brief Description: The process by which habitat loss results in the division of large, continuous habitats into smaller, more isolated remnants.

Regions Affected: Chernobyl-Ukraine, Fukushima-Japan | Brief Description: Accidents occurring at nuclear power plants resulting in significant emission of radioactive materials.

Regions Affected: Amazon Basin, Southeast Asia, Central Africa | Brief Description: The permanent destruction of forests in order to make the land available for other uses.

Regions Affected: Agricultural lands worldwide | Brief Description: The wearing away of the topsoil by natural physical forces of water and wind or through forces associated with farming activities.

Regions Affected: North Central Pacific Ocean | Brief Description: A gyre of marine debris particles, predominantly plastic, in the central North Pacific Ocean.

Regions Affected: Major cities worldwide | Brief Description: Urban areas that experience higher temperatures than outlying areas, due to human activities.

Regions Affected: Volcanic regions like the Pacific Ring of Fire, Italy, Iceland | Brief Description: Ruptures in the Earth's crust where lava, volcanic ash, and gases are expelled, affecting local environments and global atmospheres.

Regions Affected: Arctic and subarctic regions | Brief Description: The thawing of perennially frozen ground in the Arctic, leading to the release of methane, a potent greenhouse gas.

Regions Affected: Worldwide, particularly in developing nations | Brief Description: An increase in the number of people that reside in a country, state, county, or city.

Regions Affected: Worldwide, notably in ecosystems with mercury and pesticide pollution | Brief Description: The accumulation of substances, such as pesticides, or other chemicals in an organism.

Regions Affected: Arctic regions | Brief Description: Drilling for oil or gas in the Arctic, raising concerns about potential impacts on ecosystems and climate change.

Regions Affected: Worldwide | Brief Description: The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).

Regions Affected: Great Barrier Reef, Caribbean | Brief Description: A phenomenon in which coral loses its color due to stress factors such as changes in temperature, light, or nutrients.

Regions Affected: Agricultural regions worldwide | Brief Description: Pollution caused by the use of pesticides, synthetic fertilizers, and other chemicals in agricultural practices that contaminate soil, water, and air.

Regions Affected: Worldwide | Brief Description: The release of greenhouse gases into the atmosphere, contributing to global warming and climate change.

Regions Affected: Worldwide | Brief Description: The deliberate large-scale intervention in the Earth’s natural systems to counteract climate change.

Regions Affected: Worldwide, notably Brazil, the United States, and Europe | Brief Description: Fuels produced directly or indirectly from organic material – biomass – including plant materials and animal waste.

Regions Affected: Worldwide, notably in developing countries where recycling occurs | Brief Description: The process of recovering material from old devices to use in new products.

Regions Affected: North America, Europe | Brief Description: The uncontrolled expansion of urban areas.

Regions Affected: Urban areas, Near airports and highways | Brief Description: Regular exposure to elevated sound levels that may lead to adverse effects in humans or other living organisms.

Regions Affected: Lakes and coastal waters worldwide | Brief Description: Rapid increase or accumulation in the population of algae in water systems, often recognized by the discoloration in the water.

Regions Affected: Worldwide | Brief Description: The goal to reduce the amount of energy required to provide products and services, for environmental and economic benefits.

Regions Affected: Global Oceans | Brief Description: The removal of a species of fish from a body of water at a rate that the species cannot replenish, resulting in those species becoming underpopulated in that area.

Regions Affected: Worldwide | Brief Description: Farming in sustainable ways meeting society's food and textile needs without compromising the ability of future generations to meet their own needs.