Red tide
“Red tide” is a common name for a phenomenon known as an algal bloom, an event in which estuarine, marine, or fresh water algae accumulate rapidly in the water column, or “bloom”. These algae, more specifically phytoplankton, are microscopic, single-celled protists, plant-like organisms that can form dense, visible patches near the water’s surface. Certain species of phytoplankton contain photosynthetic pigments that vary in color from green to brown to red, and when the algae are present in high concentrations, the water appears to be discolored or murky, varying in color from white to almost black.
Source: http://en.wikipedia.org/wiki/Red_tide
my broken raft
And again and again… I’m sick and tired. Cars, cars. cars. pollution, trash, plastic, cans, a stupid guy opening the window of the bus and getting rid of all the junk in his pockets..
Point Source Pollution
It’s really sad when you see big pipes polluting water, rivers, lakes and finally seas. It’s worse when industrial wastes mixed with water pass through residential districts. Point Source Pollution is pollution from an identifiable source. Industries always look for the cheapest way to get rid of their waste. So it’s time for the state to take some measures against them and finally fine them. Nutrients, toxic chemicals and oil increase public health risks, affects life span and reproduction rates of all animals(including humans). Here are some pictures of water pollution in Thessaloniki, Greece.
Eutrophication and pollution
water pollutionOriginally uploaded by satel444
Eutrophication is the result of nutrient pollution. When a certain land, or lake, or sea receives excessive amounts of nutriens(mostly phosphorus or nitrogen) the result is eutrophication. Aquatic environments polluted with fertilizers is an example. Increased chemical nutrients means productivity. However this productivity is very dangerous for the ecosystem’s “health”. The most common result of eutrophism is the algal bloom.
Here are some ecological effects of eutrophism by wikipedia
Increased biomass of phytoplankton
Toxic or inedible phytoplankton species
Increases in blooms of gelatinous zooplankton
Decreased biomass of benthic and epiphytic algae
Changes in macrophyte species composition and biomass
Decreases in water transparency (increased turbidity)
Color, smell, and water treatment problems
Dissolved oxygen depletion
sos
air pollutionOriginally uploaded by satel444
Black carbon pollution.. Black carbon pollution is the release of tiny particles into the air from burning fuel for energy.
Human greed is only responsible of the increase in the average Earth’s temperature.
Earth in Danger 