Global Warming
Biology: IB Diploma Higher Level, topic 8.4.3
Global Warming
The consequences of global warming include:
Ice
- Melting ice causes sea levels to rise, which could flood coastal habitats forever, losing the land and associated biodiversity.
- Changes to the way sea ice changes through the year is affecting the survival of animals at both poles.
Extreme meteorological events
- Extreme meteorological events, such as floods, droughts, severe storms and wildfires are happening more often.
Sea surface temperatures
- Rising sea surface temperatures are causing bleaching of sensitive corals.
Ocean acidification
- Increased acidification (becoming more acidic) of the oceans is making it harder for corals to build their skeletons.
Migration patterns
- Many migration patterns are likely to be altered by global warming.
Distribution of species
- Malaria-carrying mosquitoes have already spread to several European countries.
- It is possible that malaria and similar exotic diseases will become an established part of life as far North as the UK in the near future.
Reduction of biodiversity
- The rate at which the climate is changing makes rapid adaptation key to avoiding extinction.
- This is particularly challenging for large-bodied animals that typically have longer generation times.
Test yourself on Global Warming
Can you think of an example of a species that has been affected by changes in sea ice at the North and South pole during the year?
What happens as a result of melting ice?