3.6 Climate Change

adds more CO2

removes CO2

does not affect CO2

true

false

using remote sensing from space with satellites

by ground-based measurements of surface temperatures, carbon dioxide concentration and sea level

by collecting “proxy data” from tree rings, ice cores, and historical records

all of the above

Carbon

Nitrogen

Oxygen

Sulfur

Increased global temperatures

Glaciers and arctic ice are melting

Sea level is rising

All of these are evidence the climate is changing

180 ppm

220 ppm

300 pmm

380 ppm

the climate during the last ice age

the carbon dioxide concentration in the atmosphere

the climate when dinosaurs existed

the average amount of snowfall during a given year

Antarctica

Greenland

Tall Mountains

China

The United States

Concentration of CO₂ in the Atmosphere in past years

Concentration of Methane in the Atmosphere in past years

The temperature of the Earth in past years

Evidence of volcanic eruptions in past years