6.2 Climate change—causes and impacts

• Typical atmospheric conditions

• Seasonal temperature and precipitation variations

• Atmospheric CO₂ concentration rising significantly

• Accelerated since 1950

• Traced to Industrial Revolution (late 18th century)

• Positive correlation: atmospheric CO₂ and global temperatures

• Data for past 800,000 years

• Anthropogenic GHG emissions

• Led to global warming and climate change

• Local to global scales

• Affects resilience, leads to biome shifts

• Examples: coral bleaching, desertification, ocean circulation changes

• Various scales and socio-economic conditions

• Impacts resilience

• Health, water supply, agriculture, infrastructure

• Systems diagrams with feedback loops

• Solar radiation variations, albedo changes, methane release

• Evidence suggests already passed

• Influenced by many factors

• Individual and societal levels