A construction company is building new houses next to a forest.

In a wetland area, many frogs are dying because a nearby factory reduced the amount of water flowing into the marsh.

A river near a grassland rises every spring and floods part of the field where many ground-nesting birds live. The nests often get washed away before the eggs can hatch.

In the Arctic, warmer temperatures are causing sea ice to melt earlier in the year.

A group of students is learning about how the environment affects bird populations.

A park near a river used to be home to many frogs and dragonflies. Last year, a nearby factory started dumping warm water into the river, raising the water temperature.