Environment

1. conservation

1.1. recycling

1.2. sustainable forestry

1.3. protection of species

1.4. nature reserve

1.5. energy conservation

1.6. organisations

1.6.1. WWF

1.6.2. Greenpeace

1.6.3. PETA

2. organisms

2.1. fish

2.1.1. goldfish

2.1.2. chicken

2.2. mammels

2.2.1. humans

2.2.2. dolphin

2.3. insects

2.3.1. bees

2.3.2. stick insects

2.4. reptiles

2.4.1. snake

2.4.2. croodiles

2.5. plants

2.5.1. flowers

2.5.2. trees

3. destruction to environment

3.1. pollution

3.1.1. water pollution

3.1.1.1. polluter : oil tanker

3.1.2. air pollution

3.1.2.1. polluter : economy emissions

3.2. natural

3.2.1. earthquake

3.2.2. vulcanic eruption

3.2.3. tornado

3.2.3.1. hyrrican

3.2.4. tsunami

3.2.5. drought

3.3. global warming

3.3.1. climate change

3.3.2. melting icebergs

3.3.2.1. higher water level

3.3.3. heat waves

3.3.4. solar radiation

3.3.5. carboon dioxide

3.4. waste/litter

3.4.1. toxic waste

3.4.2. industrial waste

3.4.3. sewage

3.4.4. plastic waste

4. energy resources

4.1. renewable energy resources

4.1.1. wind

4.1.2. water

4.1.3. solar

4.2. fossil energy resources

4.2.1. oil

4.2.2. natural gas

4.2.3. geothermal

4.2.4. coal

4.3. nuklear energy resouces