Human impacts on the ocean. Pollution Transportation of exotic/invasive species Alteration of physical habitat Fisheries/Aquaculture - covered Global Warming. Pollution. Garbage Sewage Oil Toxic chemicals Radioactive wastes Noise. Ghost nets . Dirty dozen. Cigarette butts
Largest seabird, the albatross
“Dilution is the solution to pollution”
-does it really stay at the bottom?
-does it effect marine organisms?
Policy of “blending”
Population - 3,039,150Navigable canals allowing billions in trade each year – 1
Waste sewage treatment plants – 0
-Dogs and leaking septic tanks in the sound
In millions of gallons
1) non-native (or alien) to the ecosystem and
2) whose introduction causes or is likely to cause economic or environmental harm or harm to human health. Invasive species can be plants, animals, and other organisms (e.g., microbes). Human actions are the primary means of invasive species introductions.
Disease such as Cholora/Vibrio
- estuaries and near shore habitats
- effect migrating fish
A warming trend or natural fluctuations?
Internal forces effect weather, but do they effect climate and cause change? Or are external forces to blame for warming trend and if yes, is it anthropogenic release of carbon dioxide?
Intergovernmental Panel on Climate Change (commissioned by UN) "most of the warming observed over the last 50 years is attributable to human activities".
Blame is on CO2
Gasses: water vapor
CO2, methane, Nitrogen oxide, CFC, and aerosols.
1928 1979 2000
-loss of albedo
-sea levels rise
Slowing and potential loss of thermohaline circulation – impacts weather
for more info/science about climate change: