Chapter 10 / 9 short lessons

Climate change, food and disease vectors

Follow the causes of warming through ecosystems, food production and mosquito biology, then evaluate practical responses and their limits.

H1 Biology / 8876 / 2027 syllabus

What do you think?

A warmer region becomes suitable for a mosquito species. Does that guarantee an outbreak of the disease it can carry?

0 of 9 marked as read

Explain the contribution of fossil fuels, deforestation and meat production to CO2 and methane accumulation over recent centuries.

Explain sea-level rise, changing extremes, fresh-water stress and greenhouse-gas release from thawed organic matter.

Explain fish and insect range shifts and climate stress on coral reefs, seagrass and mangroves.

Explain how mangroves reduce climate impacts through carbon storage and coastal ecosystem functions.

Compare fossil fuels, solar power, nuclear power and bioethanol using a consistent life-cycle boundary.

Explain relative footprints of meat, plant foods and deforestation using appropriate comparison units and boundaries.

Discuss how heat and extreme weather affect plants, animals and sustainable food production.

Explain insect metabolism, temperature tolerance and temperature-dependent Aedes aegypti development.

Explain how warming can change malaria and dengue transmission ranges while recognising other required conditions.

What you will be able to do

Connect CO2 and methane emissions to physical and biological effects.
Compare footprints and explain mangrove protection and food-supply pressures.
Explain temperature effects on mosquitoes and the conditions needed for disease spread.

Start with a quick check or explain a biological result in your own words.