Environmental problems

1. Introduction

2. Key issues for enviromental problems

2.1 Pollution

2.2 Overpopulation

2.3 Public health issues

2.4 Species extinction/Deforestation

3. How can we help?

4. Conclusion

5. Sources

key issues

Pollution

Overpopulation

Species extinction / Deforestation

Public health issues

Pollution

• chemicals realesed into the air trough harmful gases, burning of fuels and other byproducts of human live

• polluted air can cause many diseases in humans and animals

• toxins from industrial and human waste are introduced into our water supplies

• water can cause many diseases
• we can't drink it anymore

• humans produce excessive amounts of loud noises
• including industrial and vehicle sources

• excessive noises can interfere with animal communication
• can harm animals that rely on sound for hunting and navigation

• humans produce to much artificial light
• the light interferes with natural cycles of light and darkness in the environment

• artificial light can confuse noncturnal animals and animals which hunt at night or rely on the stars for navigation

Overpopulation

• Human population continues to grow
• at the beginning of the 20th century with 1.6 billion people

• right now, about 7.5 billion
• estimates put us at nearly 10 billion by 2050
• growing global populations, combined with growing affluence, putting greater pressure on essential natural resources, like water
• most growth is happening in Africa and in southern and eastern Asia
  

Public health issues

• medical issue that affects a significant portion of a specific population

Species extinction/Deforestation

• wild animals are hunted to extinction for bushmeat, ivory or "medical" products
• At sea, huge industrial fishing boats clean out entire fish populations
• loss and destruction of habitat are also major factors
• Red List of threatened and endangered species continues to grow
  
• wild forests get destroyed, especially in the tropics
• 7.3 million hectares of forest are destroyed each year
  
• tropical forests used to cover 15 percent of the planet's land area, now down to 6 or 7 percent
  
• destroyed to make way for soybean/palm oil plantations, or other agricultural monocultures

• take public transport
• turn the lights of when leaving a room
• recycle paper plastic, metal and organic materials
• walk or ride a bike when possible
• stop/don't start smoking
• protect natural areas

• much more