Atmospheric CO2 and Earth's Temperature | PBS LearningMedia
Climate change: Carbon dioxide levels are higher than they've been at any point in the last 3.6 million years - CBS News
Down To Earth Climate Change - Resources
Climate Change Indicators: Atmospheric Concentrations of Greenhouse Gases | US EPA
Global Climate Change
Global Monitoring Laboratory - Carbon Cycle Greenhouse Gases
Carbon Dioxide and Global Temperature Visualization - YouTube
Climate Change: Atmospheric Carbon Dioxide | NOAA Climate.gov
CO₂ and Greenhouse Gas Emissions - Our World in Data
Carbon dioxide now more than 50% higher than pre-industrial levels | National Oceanic and Atmospheric Administration
Here's how CO2 emissions have changed since 1900 | World Economic Forum
Carbon dioxide in Earth's atmosphere - Wikipedia
CO2 since the start of the Industrial Revolution | Real-World Economics Review Blog
Climate Warming Trend, Impacts & Building Support for Action – Climate Solutions Advancement Network (ClimateSAN)
Atmospheric carbon dioxide levels
10,000 Years of Carbon Dioxide - Berkeley Earth
CO2 since 1800
CO2 Levels: Current & Historic Atmospheric Carbon Dioxide / Global Temperature Graph & Widget
Carbon dioxide in atmosphere spikes to new high | MPR News
Graphic: The relentless rise of carbon dioxide – Climate Change: Vital Signs of the Planet
Part 2 of 5: What Chemistry Tells Us
Climate Change: Atmospheric Carbon Dioxide | NOAA Climate.gov
3C: Keeping track of CO2 in today's atmosphere
Carbon Dioxide Through Time | EARTH 103: Earth in the Future
A Graphical History of Atmospheric CO2 Levels Over Time | Earth.Org
