Human activity has significantly impacted the environment through population growth, urban development, industry, agriculture, and livestock. Some of the effects include contamination of water, land and air, loss and alteration of ecosystems, reduced biodiversity, climate change, and diminished water availability. Many forests and fisheries around the world have been severely degraded. Mexico in particular has lost over 37% of its original forest cover and over 80% of fisheries are fully exploited. The document encourages individual action like reducing ecological footprints through conserving water, planting trees, and recycling to help address pressing environmental problems.

1. Human
impact in the
environment

2. 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 millions
years of:
• VOLCANIC ERUPTIONS
• HURRICANES
• EROSION FOR WATER AND WIND

3. Human impact
POPULATION
URBAN DEVELOPMENT
TURISTIC ACTIVITY
INDUSTRY
LIVESTOCK
AGRICULTURE

4. EFFECTS IN THE ENVIRONMENT
• The population who inhabit
an area, exercise their
impacts in the environment
trought of whole of
productive activities like…

5. 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

6. 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.

7. BIG CHANGES IN ENVIRONMENT
IN 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.

8. 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.

9. 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…

10. 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.

11. 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