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Anna Grisham

European Commission - Climate Action - Adaptation to climate change - Marine - 0 views

ec.europa.eu/...marine_en.htm

climate change marine soil intrusion impact sea APES

shared by Anna Grisham on 09 Nov 11 - No Cached
  • flooding and erosion, salt intrusion and freshwater shortage, and the gradual loss of coastal ecosystems. Extreme weather and natural disasters will also threaten coastal populations and businesses.
    • Anna Grisham
      Anna Grisham on 09 Nov 11
       
      Such climate change will cause disruptions in marine ecosystems as well as populations on land. Salt intrusion taints drinking freshwater and makes it undrinkable. The erosion and the climate changes will hurt the marine life by increasing the salinization of the water and  harm temperature-sensitive species. The natural disasters will harm the species by physically disrupting their habitats.
  • Changes in regional sea temperatures have already lead to shifts in the distribution of plankton. As the main food source in most marine ecosystems, the availability of plankton has knock-on effects for the entire marine food chain and all species, large or small.
    • Anna Grisham
      Anna Grisham on 09 Nov 11
       
      Since plankton is at the beginning of the food chain, the disruption of its population has repercussions on every level. The ocean is experiencing thermal expansion, which also causes a rise in sea level. The change in the temperatures hurt this marine species.
  • Higher CO2 levels in the atmosphere are already bringing about a decline in the calcification rate of corals and in the future could pass a threshold where reef building is no longer possible.
    • Anna Grisham
      Anna Grisham on 09 Nov 11
       
      CO2 levels are definitely increasing in the atmosphere which evidently effects marine life. This CO2 could potentially hurt the development of reefs. CO2 levels are connected to climate change.
  • Anna Grisham on 09 Nov 11
     
    Impact of climate change on marine ecosystems
Ann Marie Hickey

Global Warming and its Effect on Marine Populations - 0 views

geography.about.com/...globalmarine.htm

global warming marine ecosystems climate change

shared by Ann Marie Hickey on 09 Nov 11 - No Cached
  • As air temperatures rise, water becomes less dense and separates from a nutrient-filled cold layer below. This is the basis for a chain effect that impacts all marine life who count on these nutrients for survival.
    • Ann Marie Hickey
      Ann Marie Hickey on 09 Nov 11
       
      global warming
  • Changes in natural habitats and food supply Changing ocean chemistry/acidification
  • If some organisms cannot adapt to their new marine environment, they will not flourish and die off.
    • Ann Marie Hickey
      Ann Marie Hickey on 09 Nov 11
       
      Organisms will go extinct at at much more rapid rate due to change in climate extremes resulting from global warming.
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  • According to the World Wildlife Fund, a small increase of two degrees Celsius would destroy almost all existing coral reefs.
    • Ann Marie Hickey
      Ann Marie Hickey on 09 Nov 11
       
      Great Barrier Reef-millions of different species of marine organisms and animals; millions of different extinct species from climate change along with fishing and pollution.
Carrie Coffee

Marine Climate Change Impacts - 0 views

www.sahfos.ac.uk/...openoceans.html

shared by Carrie Coffee on 09 Nov 11 - No Cached
  • Changes caused by increased warming on marine biological communities are likely to have important consequences on ecological structure and function thereby leading to significant feedbacks on the Earth's climate system
  • Northern Hemisphere Temperature (NHT) trends and variations in the North Atlantic Oscillation (NAO) index. These have included changes in species distribution and abundance, the occurrence of sub-tropical species in temperate waters, changes in overall phytoplankton biomass and season length, changes in the North Sea ecosystem, community shifts, phenological changes and changes in species interaction
  • These have included changes in species distribution and abundance, the occurrence of sub-tropical species in temperate waters, changes in overall phytoplankton biomass and season length, changes in the North Sea ecosystem, community shifts, phenological changes and changes in species interaction
    • Carrie Coffee
      Carrie Coffee on 09 Nov 11
       
      Warming of the oceans is causing change to all biological functions of the ocean. The distribution of animals is being effected, along with the seasons and ecosystem interactions
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