![]() ![]() ![]() (“Parts per million” refers to the number of carbon dioxide molecules per million molecules of dry air.) These measurements are from the mid-troposphere, the layer of Earth's atmosphere that is 8 to 12 kilometers (about 5 to 7 miles) above the ground. Note how the map changes colors as the amount of CO 2 rises from 365 parts per million (ppm) in 2002 to over 400 ppm currently. The animated map shows how global carbon dioxide has changed over time. This is greater than what naturally happened at the end of the last ice age 20,000 years ago. Since the beginning of industrial times (in the 18th century), human activities have raised atmospheric CO 2 by 50% – meaning the amount of CO 2 is now 150% of its value in 1750. The second graph shows CO 2 levels during Earth’s last three glacial cycles, as captured by air bubbles trapped in ice sheets and glaciers. The first graph shows atmospheric CO 2 levels measured at Mauna Loa Observatory, Hawaii, in recent years, with natural, seasonal changes removed. Human activities have raised the atmosphere’s carbon dioxide content by 50% in less than 200 years.Ĭarbon dioxide (CO 2) is an important heat-trapping gas, or greenhouse gas, that comes from the extraction and burning of fossil fuels (such as coal, oil, and natural gas), from wildfires, and from natural processes like volcanic eruptions. ![]() It's easy, fast, and secure Burn data, create audio CDs, make backups, or produce your own movies - the possibilities are endless Even advanced projects like video DVDs with animated menus and scene selection screens are just a matter of minutes. Carbon dioxide in the atmosphere warms the planet, causing climate change. Ashampoo Burning Studio burns your files, movies, and music to any CD, DVD, or Blu-ray disc. ![]()
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