The natural flow of silt down the river will be interrupted, affecting downstream ecosystems.

When artificial light affects organisms and ecosystems it is called ecological light pollution.

Light pollution may also affect ecosystems in other ways.

Nitrogen pollution is now high enough to affect ecosystems throughout England and Wales.

How will climate change in general affect specific ecosystems?

This is done to prevent toxic substances from entering into the wider environment and affecting ecosystems.

The field of environmental aerodynamics studies the ways atmospheric circulation and flight mechanics affect ecosystems.

Climate changes are already affecting water, energy, transportation, agriculture, ecosystems, and health.

These changes are in turn affecting human and natural ecosystems.

The emission of greenhouse gases leads to global warming which affects ecosystems in many ways.