In the future, cities might become more ______ because more people will move there.
crowded
Scientists predict that ______ will continue to cause rising temperatures.
global warming
The Arctic is the natural ______ of polar bears.
habitat
If we don’t take care of the ______, there will be more natural disasters.
environment
If deforestation continues, many species of ______ are going to disappear.
wildlife
Experts say that ______ is going to be a big issue as the number of people keeps growing.
overpopulation
Scientists believe that extreme weather, caused by ______, will affect millions of people.
climate change
In some areas, a lack of rain might cause a severe ______, making farming difficult.
drought
If we don’t act now, air ______ will get worse, making it harder to breathe.
pollution
Some animals might not ______ if their home are destroyed.
survive
Governments must find ways to ______ carbon emissions to slow climate change.
reduce
The ______ is going to rise as natural resources become more limited.
cost of living
If temperatures continue to ______, there will be more wildfires.
increase
Burning ______ produces carbon dioxide, which contributes to global warming.
oil and gas
If we don’t ______ the environment, future generations are going to suffer.
protect
Rising ______ is going to cause ice caps to melt, leading to higher sea levels.
temperature
