“Our Planet Is A Changing”

“And Fast!”

The proportion of carbon dioxide in the atmosphere is set to break 400 parts per million this month, levels not seen in 3 million years, according to one of the best climate records available.

The Keeling Curve, a daily record of atmospheric carbon dioxide, has been running continuously since March 1958, when a carbon dioxide monitor was installed at Mauna Loa volcano in Hawaii. On its first day, the observatory measured a carbon dioxide concentration of 313 parts per million (ppm). That number means there were 313 molecules of carbon dioxide in the air for every 1 million air molecules.

The number continued to climb through May 1958 and then slowly started to drop, reaching a minimum in October that year. This maximum-minimum pattern, repeated seasonally, reveals how trees withdraw carbon dioxide from the air in summer to grow and then release it through dead, decaying leaves and wood in the winter.But humans release carbon dioxide into the air, too, by burning fossil fuels. This activity has caused the Keeling Curve to creep ever upward since 1958…

“It is a reminder of just how uncontrolled this dangerous experiment we’re playing with the planet really is.” 

In the 1,000 years that occurred before the Industrial Revolution of the 18th century, atmospheric carbon dioxide held steady at around 270 to 280 parts per million.

Scientists believe that the most recent period to reach 400 ppm was the Pliocene Epoch, between 5 million and 3 million years ago, according to the Scripps Institution of Oceanography, which keeps track of the Keeling Curve.

Back then, it was a different world. Global average temperatures during the period were between 5.4 and 7.2 degrees Fahrenheit (3 to 4 degrees Celsius) higher than today, and sea level was as much as 131 feet (40 meters) higher in some places. Even the least-affected regions saw sea levels 16 feet (5 meters) higher than today’s.

A major difference between then and now, though, is the speed at which carbon dioxide is rising today. Typically, in the last 40 to 50 years, the Keeling Curve shows increases of 2 to 2.5 ppm a year, Mann said. In the 1950s and 1960s, carbon dioxide increased by less than 1 ppm each year. Facts are facts and we are definately heading into a MUCH Warmer Future no matter what anyone says. This was actually predicted by our ancient peoples believe it or not! Obviously they were smarter than all of our scientist it seems. They learned to live in balance with the planet. We have let our consumer attitudes take control and we have really messed up our planet.

“We’re on course for more than 450 ppm in a matter of decades if we don’t get our fossil fuel emissions under control and soon!

About the Author

Comments are closed.

Revolver Map

May 2013
« Apr   Jun »