supporters point to these things as evidence of global warming
What are climate records, glacier records, and rising levels of greenhouse gases in the atmosphere?
100
data
What do scientists study and compare?
100
this area could be flooded if there is a rise in sea level
What are low lying areas?
200
a large ecosystem
What is a biome?
200
the Earth's climate is getting warmer, this is mainly caused by human activity, and it is harmful to people and biomes
What are the three key ideas about global warming?
200
This is when supporters of the theory think climate change started.
What is the Industrial Revolution?
200
ice cores of glaciers
What do scientists study to learn about the climate in Antarctica thousands of years ago?
200
flooded cities
What damage could result from rising sea levels?
300
a large, floating sheet of ice that is attached to the coast
What is an ice shelf?
300
this natural process keeps the Earth warm
What is the greenhouse effect?
300
400 billion tons
How much carbon dioxide is added to the air every year?
300
a large mass of ice floating around in the ocean
What is an iceberg?
300
move to inland areas
How could people living in low-lying coastal areas survive a flood?
400
flows of ice called ice streams which slide across the surface of the ice cap
What are ice streams
400
This activity has caused a rise in the levels of greenhouse gases int he atmosphere.
What is the burning of fossil fuels?
400
This is what people who doubt global warming say to support their position
What is the upper atmosphere has little temperature change, most surface area temperature increases come from urban areas, and some ice cap glaciers are growing?
400
to see if they are growing or melting
Why do researchers study ice shelves?
400
low lying land in Southern Bangladesh
What might be flooded if there is a rise in sea level?
500
the gradual increase in the temperature of Earth's surface over time
What is global warming?
500
this is given off when fossil fuels are burned
What is carbon dioxide?
500
We don't know for sure.
Who is right?
500
Miami, New Orleans, and New York
What are three cities that would be in danger if the sea level rose 20 feet?