Human impact in the environment
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Transcript of Human impact in the environment
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Human impact in the environment
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If we could observed the earth from its natural satellite, it could be watched like a big and blue sphere in absolut calm. However, a lot of people ignore that the actual appearence of the earth is the result of mill ions years of:
• VOLCANIC ERUPTIONS• HURRICANES• EROSION FOR WATER AND
WIND• HUMAN ACTIVITY
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Human impact
POPULATION
URBAN DEVELOPMENTTURISTIC ACTIVITY
INDUSTRY
LIVESTOCK
AGRICULTURE
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EFFECTS IN THE ENVIRONMENT
• The population who inhabit an area, exercise their impacts in the environment trought of whole of productive activities like…
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EFFECTS IN THE ENVIRONMENT
CONTAMINATION OF WATER, LAND AND AIR
LOST AND ALTERATION OF ECOSYSTEM
LOST OF BIODIVERSITY
CLIMATE CHANGE AND REDUCTION OF OZONE´S LAYER DIMINUTION OF DISPONIBILITY WATER
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Environment problems
• All the elements of the environment are nearby relationed.
• The environment problems that affect an element, will have in every moment, a direct or indirect effect in all the rest of elements.
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BIG CHANGES IN ENVIRONMENTIN THE WORLD
• COVERED FOREST ARE LOWER IN A 50% OF THEIR ORIGINAL EXTENSION.
• 70 % OF THE BANK OF SPECIES OF FISHES MOST IMPORTANT ,ARE EXPLOTED IN EXCESS.
• THE EARTH, EXPERIMENT THE SIX EXTINCTION MOST IMPORTANT OF SPECIES IN THE HISTORY, ASSOCIATED TO HUMAN DEVELOPMENT.
• ABOUT 25 MILLIONS OF TONS OF FERTILE LAND, ARE LOST EVERY YEAR IN THE WORLD.
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BIG CHANGES IN MEXICO
• Near to 45 % of land, present a degradation caused for man.
• More than 80 % of natonal fishery are reaching to maximum improvement.
• 2583 species between plants and animals are considering in any risk category.
• It lost near to 37 % of the covered national forest.
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The ecological footprint.
THIS CONCEPT SAYS THAT THE HUMANS, PLANTS AND ANIMALS WHO INHABIT THE PLANET,NEED FOOD, ENERGY AND WATER FOR LIVE.
THAT IS EQUAL LIKE WE NEED A “LITTLE BIT OF NATURE”.
HOWEVER, THIS NECESSITY HURTS OUR WORLD…
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WHAT CAN I DO?
• THE REDUCTION OF ECOLOGICAL FOOTPRINT IS A WORK OF ALL PEOPLE.
• THERE ARE A LOT OF INDEPENDIENT GROUPS AND INTERNATIONAL INSTITUTIONS WHO WORK IN THIS PROBLEM.
• YOU NEED TO START IN YOUR COMMUNITY, FAMILY AND CONTEXT, WITH BASIC RULES LIKE : SAVE WATER, PLANT TREES, RECICLING, ETC.
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BIBLIOGRAPHY AND WEB PAGES:
• Semarnat. ¿Y el medio ambiente? Problemas en México y el mundo.Semarnat. México. 2007
• http://www.wwf.org.mx/wwmex/he_cuestionario.php• http://www.earthday.net/footprint/index.asp