1. 1 Review List the three primary types of human activities that have affected regional and global environments. For each, give one benefit and one environmental cost 2 Review What is sustainable development and how can it help minimize the negative impacts of human activities Apply Concepts In addition to filtering water, wetlands provide flood control by absorbing excess water. Explain how society would provide these services if the ecosystem could not. 3 Description What signs of growth do you see in your community? Write a paragraph telling how this growth might affect local environments.

2. Ch 6 Humans in the Biosphere
6.1 A Changing Landscape

3. The Effect of Human Activity
Living on Island Earth
Agriculture
Development
Industrial Growth.

4. Living on Island Earth Land, food, and water are limited resources
Human activity has used or altered roughly half of all the land that’s not covered with ice and snow.

5. Agriculture
Modern agricultural practices have enabled farmers to double world food production over the last 50 years
Monoculture
Clearing large areas of land to plant a single highly productive crop year after year
Enables efficient sowing, tending, and harvesting of crops using machines.

6. Development People began to congregate and formed towns
More people moved into cities
Cities got crowed people moved to suburbs…
What is the result.

7. Industrial Growth Modern conveniences High energy use
Industrial waste.

8. Sustainable Development
Using natural resources in a way that does not cause long-term environmental harm.

9. Nonrenewable Resources
Can be produced or replaced by a healthy ecosystem
Wind
Nonrenewable Resources
Natural processes cannot replenish them within a reasonable amount of time
Fossil fuels like coal, oil, and natural gas.