Greenhouse Gases
This greenhouse gas increases when combustion increases.
What is carbon dioxide?
If more energy enters Earth than exits, temperatures will ______.
What is increase?
Scientists use these frozen samples to study past atmospheres.
What are ice cores?
This process of burning fuels increases carbon dioxide.
What is combustion?
Sulfur dioxide redirects energy back toward this place.
What is outer space?
This gas is produced by livestock.
What is methane?
When less energy enters than exits, Earth becomes ______.
What is cooler?
Scientists study these to learn about past climate.
What are tree rings?
Driving less can reduce these greenhouse gases.
What are carbon dioxide and methane?
Sulfur dioxide mainly causes Earth to become ______.
What is cooler?
Increasing greenhouse gases causes Earth to absorb ______ energy.
What is more?
Carbon dioxide redirects this type of energy back toward Earth.
What is exiting energy?
Scientists study these to learn about methane levels from millions of years ago.
What are rocks?
Combustion engines became common during this century.
What is the 1800s / 19th century?
Volcanic eruptions release this gas into the atmosphere.
What is sulfur dioxide?
When methane decreases, energy in the Earth system ______.
What is decreases?
Long-term patterns in climate data are called ______.
What are trends?
The least effective climate evidence was glacier data collected for only this amount of time.
What is 2 years?
Eating less meat could reduce methane because fewer of these animals would be needed.
What are livestock?
Sulfur dioxide causes incoming energy from the Sun to be ______.
What is redirected / bounced back?
These gases trap energy in the atmosphere.
What are greenhouse gases?
Earth warms when more energy enters than ______.
What is exits?
The graph from 1880–2011 showed this overall temperature pattern.
What is an increasing trend?
Using solar power instead of fossil fuels would likely cause carbon dioxide to ______.
What is decrease?
Volcanic eruptions usually have a much ______ effect on climate than human activities.
What is smaller?