Geography HL
Geography HL
13
Chapters
193
Notes
Option A - Freshwater – Drainage basins
Option A - Freshwater – Drainage basins
Option B - Oceans & Coastal Margins
Option B - Oceans & Coastal Margins
Option C - Extreme Environments
Option C - Extreme Environments
Option D - Geophysical Hazards
Option D - Geophysical Hazards
Option E - Leisure, Tourism & Sport
Option E - Leisure, Tourism & Sport
Option F - The Geography Of Food & Health
Option F - The Geography Of Food & Health
Option G - Urban Environments
Option G - Urban Environments
Unit 1 - Changing Population
Unit 1 - Changing Population
UNIT 2 - Global Climate - Vulnerability & Resilience
UNIT 2 - Global Climate - Vulnerability & Resilience
Unit 3 - Global Resource Consumption & Security
Unit 3 - Global Resource Consumption & Security
Unit 4 - Power, Places & Networks
Unit 4 - Power, Places & Networks
Unit 5 - Human Development & Diversity
Unit 5 - Human Development & Diversity
Unit 6 - Global Risks & Resilience
Unit 6 - Global Risks & Resilience
IB Resources
UNIT 2 - Global Climate - Vulnerability & Resilience
Geography HL
Geography HL

UNIT 2 - Global Climate - Vulnerability & Resilience

Future Biomes & Climate The Shift & Its Impact

Word Count Emoji
655 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

FUN FACT: Did you know the word "Biome" is like an international passport for plants and animals? Yes, it tells us where they live! 🌍

Biomes in the spotlight!

Biomes are moving in response to climate change; specifically, they're shifting from the equator towards the poles, and up mountainsides too.🌳🏔️

 

Real-world example: Imagine how as you climb up a mountain, the vegetation changes from forests at the bottom to alpine meadows higher up. That's an altitudinal shift.🌲➡️🌼

 

But beware, low-lying biomes like mangroves might disappear because of rising sea levels.🌊

 

Real-world example: The Sundarbans mangrove forest, spanning India and Bangladesh, is under threat from sea-level rise.🐅

Species & biodiversity

As biomes shift, the types of species in an ecosystem will change. Fast climate change leaves little time for animals to adapt. Some can move, but others that can't may go extinct.

 

Real-world example: Think about polar bears. As Arctic ice melts, their hunting grounds shrink, endangering their survival.❄️🐻

 

Up to 40% of wildlife species could become extinct if global temperatures rise by 2°C. Particularly vulnerable are those in high-altitude and high-latitude habitats.

Impact of climate change on forests

Forests in the US, which absorb 13% of the country's greenhouse gas emissions, are threatened by wildfires, insect infestations, and drought, all exacerbated by climate change.

 

Real-world example: In 2015, the largest area of American forest since 1960 was consumed by wildfires, costing over $2 billion. Fire seasons have gotten longer due to hotter temperatures, rising from 50 to 125 days since 1970.🔥

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IB Resources
UNIT 2 - Global Climate - Vulnerability & Resilience
Geography HL
Geography HL

UNIT 2 - Global Climate - Vulnerability & Resilience

Future Biomes & Climate The Shift & Its Impact

Word Count Emoji
655 words
Reading Time Emoji
4 mins read
Updated at Emoji
Last edited on 16th Oct 2024

Table of content

FUN FACT: Did you know the word "Biome" is like an international passport for plants and animals? Yes, it tells us where they live! 🌍

Biomes in the spotlight!

Biomes are moving in response to climate change; specifically, they're shifting from the equator towards the poles, and up mountainsides too.🌳🏔️

 

Real-world example: Imagine how as you climb up a mountain, the vegetation changes from forests at the bottom to alpine meadows higher up. That's an altitudinal shift.🌲➡️🌼

 

But beware, low-lying biomes like mangroves might disappear because of rising sea levels.🌊

 

Real-world example: The Sundarbans mangrove forest, spanning India and Bangladesh, is under threat from sea-level rise.🐅

Species & biodiversity

As biomes shift, the types of species in an ecosystem will change. Fast climate change leaves little time for animals to adapt. Some can move, but others that can't may go extinct.

 

Real-world example: Think about polar bears. As Arctic ice melts, their hunting grounds shrink, endangering their survival.❄️🐻

 

Up to 40% of wildlife species could become extinct if global temperatures rise by 2°C. Particularly vulnerable are those in high-altitude and high-latitude habitats.

Impact of climate change on forests

Forests in the US, which absorb 13% of the country's greenhouse gas emissions, are threatened by wildfires, insect infestations, and drought, all exacerbated by climate change.

 

Real-world example: In 2015, the largest area of American forest since 1960 was consumed by wildfires, costing over $2 billion. Fire seasons have gotten longer due to hotter temperatures, rising from 50 to 125 days since 1970.🔥

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Geography HL. Subscribe now and get closer to that 45 🌟