This greenhouse gas is the most commonly produced by human activities and is released when we drive cars or use electricity.
What is carbon dioxide (CO₂)?
The relationship shown in this graph.

As concentration of CO2 increases so does average global temperature.
According to the Centers for Disease Control and Prevention (CDC), this causes more weather related deaths each year in the United States than hurricanes, floods, or tornadoes.
What is extreme heat?
This type of energy comes from sources like the sun and wind and does not run out.
What is renewable energy?
Putting thousands of these into low earth orbit could reflect some of the sun's energy back into space.
What are space mirrors?
When factories and power plants release gases into the air, it increases this effect that traps heat in Earth’s atmosphere.
What is the greenhouse effect?
What does this image show?
What is loss of sea ice?
Sea ice extent in the arctic has declined substantially.
Why hurricanes today drop about 10–15% more rainfall than similar storms in the past. (your answer needs to be more specific than climate change)
What is warmer ocean waters?
Driving this type of vehicle instead of a gas-powered car helps reduce carbon emissions.
What are electric vehicles?
The effect of a large volcanic eruption on the climate can be imitated with this, cooling the planet.
What is spraying particles into the stratosphere?
This human activity reduces nature’s ability to remove carbon dioxide from the atmosphere.
What is deforestation?
Where ice sheet loss is happening at a more rapid rate.
What is Greenland?
Casesof this tick borne disease have roughly doubled in the United States since the 1990s.
What is Lyme Disease?
This practice reduces the amount of trash in landfills and helps lower greenhouse gas emissions by reusing materials.
What is recycling?
How can adding iron to the ocean can help reduce the amount of CO2 in the atmosphere.
Fertilizing the oceans could create large blooms of photosynthetic organisms that take in CO2 during photosynthesis and trap carbon in the deep ocean when they die.
This human activity is the main source of Methane, another powerful greenhouse gas.
What is agriculture/raising livestock?
The reason land temperatures are rising significantly faster than ocean temperatures.
What is the high specific heat of water?
Due to hotter and drier weather incidents of this natural disaster have more than doubled since the 1980s in the western United States.
What are wildfires?
Protecting and restoring these large natural areas helps absorb carbon dioxide and support ecosystems.
What are forests?
Reflecting even a small amount of sunlight away from the earth's surface can have this benefit.
What is cool the planet or lower the temperature.
This is the reason the arctic region is heating up faster than other parts of the planet.
What is loss of arctic sea ice?
Besides melting ice sheets, the other cause of sea level rise.
As ocean waters warm they expand.
This type of natural disaster, associated with heavy rain events have increased by about 20% since 1958.
What are floods?
An account of all the carbon dioxide you generate from things like transportation, food, electricity is called your_____________.
What is a carbon footprint?
This might be a barrier to planting trillions of trees.
Humans use a lot of land for agriculture, etc