Human activity can negatively affect ecosystems. Some examples are
habitat destruction (deforestation and urban development)
Invasive species
Pollution in the air and water
We rely on nonrenewable resources to provide humans with the energy they need to power the things they use
their homes, cars, etc.
The burning of fossil fuels contributes to climate change.
This video explores the tail of the "perfect mountain", a shapely peak dubbed the Fuji of the West. 9,677 feet of snow-capped grandeur in the heart of the Cascade Range. This is the story of the cataclysmic events of that day, and the miraculous resiliency of Nature as life returns out of the ash.
This video explores the Mt. St. Helen eruption which took place on May 18, 1980. It was deadliest volcanic event in U.S. history. Every living thing in a 230 mile radius was killed. But the slopes around the volcano are now beginning to repopulate with plant and animal life, giving biologists a unique opportunity to watch an ecosystem develop in real time.
This video explore our planet’s diverse, thriving ecosystems. They may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can become lifeless rocks. What makes one ecosystem strong and another weak in the face of change? Kim Preshoff details why the answer, to a large extent, is biodiversity.
Invasive species outcompete native species.
Pollution can damage habitats and affect organisms at the cellular level.
Nonrenewable resources are not sustainable in the long term.
Climate change is often called “global warming”, but the changes extend beyond higher average temperatures.