2050 & Population
About how many people are expected to live on Earth by 2050?
About 10 billion
What are the 3 parts of the sustainability barrel?
Environment, Society, and Economy.
What is the ripple effect?
A small action that leads to bigger effects over time.
What do plants need from soil to help them grow strong?
Nutrients
What is the economy?
How people make, spend, and use money.
Name three things the world will need more of because of population growth.
Food, water, land, homes, or jobs.
What is a limiting factor?
The weakest part of the system/barrel.
Can the ripple effect be positive, negative, or both?
Both.
Why do we need healthy soil?
To grow strong crops, from which we get our food from & feeds the livestock
What is supply & demand?
How much of something that is available.
How many people want something.
What might happen to food prices if the population increases but the food supply does not?
How can that affect the quality of life for people?
Prices will go up.
Prices may become unaffordable or very expensive.
Give one example of a limited resource.
How could the limited resource affect the quality of life for people?
Clean water or land/farmland.
What is a small action that you can do to be sustainable? How could it create a ripple effect?
Recycling, composting, saving water, etc.
What happens if the soil does not have enough or balanced nutrients?
Plants may become sick and die.
True or False: When supply is low and demand is high, prices go up.
True
Why might we have less land to grow food in the future?
How could this affect people's quality of life?
Land will also need to be used for homes and businesses.
If too much land is used for homes and businesses, we will have less land for crops. We get our food from crops, so we need to make sure we are still producing enough food for the population.
Why can one weak part affect the whole system?
Because all parts depend on each other.
Why is the ripple effect important for sustainability?
Small actions can create large positive changes over time.
What can happen to the economy if lots of crops died?
How could that affect quality of life?
Damaged soil will create less healthy crops, and less food for people to buy. The price of food will go up, if we have less food and lots of people wanting it. This can affect people's quality of life if food prices get very expensive.
How are you part of the economy?
Buy things or sell things