Tragedy of the Commons, Green Revolution
A shared space with resources that are degraded by over-use.
What is a Commons?
Growing one single species of crop
What is Monocropping?
The term for the total variety of species in an ecosystem?
What is Biodiversity?
The measure of how much a share of natural resources one person/group consumes.
What is an ecological footprint?
Introducing a natural predator to control pest population.
What is a Biological control?
The term for use of machinery in agriculture, such as combine harvesters, tillers, and sprayers.
What is mechanization?
Cutting down vegetation and burning it to clear land for agriculture and to return the nutrients back to the soil
What is Slash and Burn?
The term for catching more fish than the environment can sustainably replace.
What is overfishing?
The practice of consuming a resource at a rate that the environment can replenish over time.
What is sustainability?
Plowing parallel to natural slopes of land instead of down slopes, which mitigates runoff and soil erosion.
What is Contour Cropping or Terrace Cropping?
Soil erosion, increased soil temperature and flooding and landslides are all the effects of what forestry practice?
What is Clearcutting?
Using trenches, furrows, or sprinkler systems to deliver more water to crops.
What is irrigation?
What is trawling?
The maximum amount of a valuable resource that can be harvested with reducing the resource for future use.
What is Maximum Sustainable Yield?
What is no-till farming?
Crops that are engineered to carry genes from other species such as genes for pest resistance.
What are GMOs?
The effect caused by penetration of salt-water into aquifers which can be caused by overuse of groundwater in coastal areas.
What is salinization?
The increase in the amount of water running overground into waterways when it's caused by increased development and use of concrete.
What is urban runoff?
City projects such as green roofs, tree planters, and park conversions that reduce runoff.
What is urban greening?
What are overfishing and bycatch?
Negative costs associated with human actions that are not account for in the literal price
What are secondary costs
What two concurrent trends characterize the pesticide treadmill?
What are increased pesticide use and increased pesticide resistance?
The term for non-target species killed or captured as a side effect of fishing.
What is bycatch?
Population movement out of a dense urban area to a less dense suburb surrounding the city.
What is Urban Sprawl?
Three negative environmental impacts of aquaculture.
What are accumulation of waste, attraction of predators, escaped fish, and chemical contamination?