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sets the energy budget for ecosystems, amount of solar energy converted to chemical energy by an ecosystem's producers
helps put nitrogen back into the soils lowering the level of synthetic nitrogen fertilizers
increasing growth of producers, lower species diversity, produces larges algal blooms
because of too much algal bloom,
less oxygen available in the water, body of water becomes stagnant with animals dying of suffocation
developing, managing, and conserving Earth's resources in ways that meet the needs of people today without compromising future generations
in upper hemisphere; letting in more harmful UV rays; caused by release of harmful chemicals
increased concentration of certain harmful chemicals as they pass through the food chain; top level predators most hurt
rising concentrations of greenhouse gases
Co2, CH4, and N2O; temperatures have risen 0.8 degrees C over the last 100 years; warming over the land is greater than water
rising temperatures, unusual precipitation patterns, extreme weather patterns and melting ice
biodiversity hot spots
relatively small areas that have a large number of endangered and threatened species
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