University of Bristol
Wellcome Trust
Recommended by:
Society of Biology
PEEP for Physics & Ethics at GCSE

Climate Change

Harmful effects and some ethical questions.

Summary table showing the harmful consequences of climate change due to global warming.

Key:-    Change in: change    increase increase    Leads to: leading to    Decrease in: decrease

Increasing temperature


Leading to Climate change

increase sea level (melting of ice and thermal expansion of water)

Leads to: 

increase coastal erosion

Leads to:

increase habitat loss e.g. marshes, dunes, mangroves and coral reefs.

Leads to:

increase salinisation (more salty) of estuaries, coastal rivers and soils

increase temperature freshwaters

Leads to:

Change in: species distribution including local extinction

Change in: pattern of succession due to temperatureincrease and this will favour some species more than others.

Change in: rainfall pattern e.g.increaseintensity and frequency (climate change)increasestorms

Leads to:

Change in: distribution of grasslands and savannahs and drying out of wetlands

Northern migration of boreal (evergreen/coniferous) forest

Decrease in: Forest productivity

Leads to:

Desiccation (drying out), causing wilting, defoliation and — fires.

increasewater or temperature stress to animals

Leads to:

Decrease in: resistance to opportunistic pests/disease e.g. coral reef organisms

increasein pests and disease

Leads to:

Pests and disease will move to new geographical areas e.g. spread of malaria

increaseglacial melting at poles

Leads to:

DramaticChange in: in food webs

Leads to:

Decrease in: productivity and biodiversity e.g. penguin populations



Next: Ethical considerations


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