The burning of fossil fuels, such as coal, oil, and natural gas, releases greenhouse gases into the atmosphere, which trap heat and cause the planet to warm.

Solar energy, wind energy, hydropower, and geothermal energy are all renewable sources of energy that do not produce greenhouse gases.

Extinction is the term for the loss of biodiversity, which occurs when a species dies out completely.

Agriculture, logging, mining, and urbanization are all major causes of deforestation.

Photosynthesis is the process of converting carbon dioxide into organic compounds, using sunlight as an energy source.

Industrial waste, agricultural runoff, sewage, and oil spills are all major sources of water pollution.

Remediation is the process of removing pollutants from the environment.

Vehicle emissions, industrial emissions, power plants, and deforestation are all major causes of air pollution.

Conservation is the process of protecting and managing natural resources.

Deforestation, burning of fossil fuels, agricultural activities, and industrial processes are all major causes of climate change.

Restoration is the process of restoring a damaged ecosystem to its natural state.

Deforestation, agriculture, mining, and urbanization are all major causes of soil erosion.

Preservation is the process of protecting and preserving natural areas.

Climate change, population growth, pollution, and deforestation are all major causes of water scarcity.

Reduction is the process of reducing the amount of waste produced.