How many degrees Celsius has the earth warmed since pre-industrial times?

• 0.9 C

• 1.5 C

• 2 C

• 0.5 C

Day to day weather events are not a good indicator of climate change

• True

• False

The greenhouse effect is...

• Another word for climate change

• A process in the atmosphere with only negative impacts

• How the earth traps infrared radiation

• The cause of the hole in the ozone layer

Which of the following is NOT a greenhouse gas?

• Carbon dioxide

• Oxygen

• Water vapor

• Nitrous oxide

Milankovitch cycles...

• Influence the amount of solar radiation the earth receives

• Are the main cause of global warming

• Affect the earth over relatively short time scales

• Are the reason the Earth has seasons

Volcanic eruptions influence climate by

• The released aerosols trapping heat

• They have little to no effect

• Causing an earthquake

• The released aerosols blocking the sun

Burning fossil fuels in large amounts...

• Has no effect on Earth's climate system

• Causes global temperatures to rise at a normal rate

• Increases carbon emissions, without increasing carbon sinks

• Has minimal effect on Earth's climate system

The concentration of greenhouse gases are the highest they have ever been in Earth's history.

• True

• False

Small atmospheric changes in greenhouse gases produce relatively small changes in temperature.

• True

• False

Which is FALSE about climate models?

• They are most accurate over long time scales

• They are based off of past climate indicators

• They are not able to predict day to day weather

• They are usually wrong and have high uncertainty