b18.5, b18.6, b18.7 - global warming and biodiversity

is this lesson finished??

why does carbon diozide increase as a result of deforestation

• dead vegetation produces carbon dioxide

• burning trees releases carbon dioxide

• removing a carbon sink means less photosynthesis which means less carbon dioxide intake

peat bogs key facts

• acidic conditions

• moss + other specialised organisms

• contains carbon (carbon sink) that plants took in 1000s of years ago

• made of plant material

  • cannot decay due to acidity

• lack of oxygen

peat uses

• fertilisers

• burn as fuel

consequences of global warming

• polar ice caps melting

• rise in sea levels

• flooding

• weather pattern changes

• migration

• widespread disease

• extinction

why is flooding bad

it destroys habitats

why is extinction bad

loss of biodiversity