Mauna Loa Observatory CO2 Monthly Averages

Description

Observations of monthly CO2 atmospheric concentration averages from the Mauna Loa Observatory, Mauna Loa, Hawaii, USA. Obtained from the ESRL Global Monitoring Division of the National Oceanic and Atmospheric Administration at http://www.esrl.noaa.gov/gmd/dv/data/index.php?parameter_name=Carbon%2BDioxide. Dataset downloaded Oct 1, 2011.

Usage

mlco2

Format

A data frame indicating the year, month and atmospheric concentration of CO2 in PPM.