OCR B Geography Paper 1 Changing Climates

no specific case study

what does global temperature data show

average global temperatures have increased by more than 1 degrees in the last century

what do ice sheets and glaciers show

Arctic sea ice has declined by 10% in 30 years

glaciers in the Andes have shrunk by 30-50%

what does sea levels change show

sea levels have risen by 10-20 cm’s in the past 100 years

what do ice cores show

drilling for ice cores allows us to see past temperatures from around 800,000 years ago

what does extreme weather show

more unpredictable and severe weather events, more frequent and powerful tropical storms

what does rising sea levels show

sea levels have risen by 20cm in 1901 so some coastal countries are disappearing e.g. Maldives

what does food supply show

warmer temperatures and changing rainfall make it harder to produce reliable crops

what do plants and animals show

around ¼ of animals and plants on earth could become extinct

what does disease and health show

warmer temperatures lead to dramatic spread of infectious diseases e.g. malaria

what does water supply show

1 billion predicted to not have access to enough water by 2025

what do climate refugees show

forced to leave their homes due to the impacts of climate change e.g.Tuvalu is affected by sea level rises