Environmental Systems & Societies SL
9
Chapters
219
Notes
Unit 1 - Foundations Of Environmental Systems & Societies
Unit 2 - Ecosystems & Ecology
Unit 3 - Biodiversity & Conservation
Unit 4 -Water & Aquatic Food Production Systems & Societies
Unit 5 - Soil Systems & Terrestrial Food Production Systems & Societies
Unit 6 - Atmospheric Systems & Societies
Unit 7 - Climate Change & Energy Production
Unit 8 - Human Systems & Resource Use
Internal Assessment
Environmental Systems & Societies SL
Unit 4 -Water & Aquatic Food Production Systems & Societies
H2O Truths: Navigating Global Water Scarcity
527 words
3 mins read
Last edited on 5th Nov 2024
Table of content
Overview
Important stats & facts
- We have less than 1% of all freshwater available for use, with the remainder locked away in ice sheets and glaciers. A big chunk of ice-cold drink anyone?
- Annually, 12,500 cubic kilometres of water are available for human use - that's like 5 million Olympic-sized swimming pools!
- Per person, this means about 6,600 cubic metres each year. But hold your hoses, if we keep going like this, we'll only have 4,800 cubic metres each by 2025.
- Freshwater supply isn't shared out equally around the world, just like your mum's famous apple pie at a family gathering!
Geographic & seasonal variations
- About 75% of the yearly rainfall happens in areas with less than a third of the world's population. Imagine having a birthday party but most of the cake lands up in your neighbour's house!
- A whopping two-thirds of the world's population live in places receiving just a quarter of the world's annual rainfall. It's like living in a desert while watching an oasis on a distant horizon.
Water access
- In 2015, about 844 million people didn't have basic access to drinking water. That's like twice the whole population of the US not having a simple glass of water!
- Comparing water consumption: A North American or Western European adult chugs about 3 cubic metres of water a day, whereas an Asian or African adult consumes less, with around 1.4 and 1.1 cubic metres a day respectively. A classic case of having a small versus large soda size.
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Environmental Systems & Societies SL
Unit 4 -Water & Aquatic Food Production Systems & Societies
H2O Truths: Navigating Global Water Scarcity
527 words
3 mins read
Last edited on 5th Nov 2024
Table of content
Overview
Important stats & facts
- We have less than 1% of all freshwater available for use, with the remainder locked away in ice sheets and glaciers. A big chunk of ice-cold drink anyone?
- Annually, 12,500 cubic kilometres of water are available for human use - that's like 5 million Olympic-sized swimming pools!
- Per person, this means about 6,600 cubic metres each year. But hold your hoses, if we keep going like this, we'll only have 4,800 cubic metres each by 2025.
- Freshwater supply isn't shared out equally around the world, just like your mum's famous apple pie at a family gathering!
Geographic & seasonal variations
- About 75% of the yearly rainfall happens in areas with less than a third of the world's population. Imagine having a birthday party but most of the cake lands up in your neighbour's house!
- A whopping two-thirds of the world's population live in places receiving just a quarter of the world's annual rainfall. It's like living in a desert while watching an oasis on a distant horizon.
Water access
- In 2015, about 844 million people didn't have basic access to drinking water. That's like twice the whole population of the US not having a simple glass of water!
- Comparing water consumption: A North American or Western European adult chugs about 3 cubic metres of water a day, whereas an Asian or African adult consumes less, with around 1.4 and 1.1 cubic metres a day respectively. A classic case of having a small versus large soda size.
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Environmental Systems & Societies SL. Subscribe now and get closer to that 45 🌟
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