Greenhouse gas concentrations over 2000 years

Description

Concentrations of the three main greenhouse gases carbon dioxide, methane and nitrous oxide. Measurements are from the Law Dome Ice Core in Antarctica. Selected measurements are provided every 20 years from 1-2000 CE.

Usage

greenhouse_gases

Format

An object of class "data.frame".

Details

• year. Year (CE).

• gas. Gas being measured: carbon dioxide ('CO2'), methane ('CH4') or nitrous oxide ('N2O').

• concentration. Gas concentration in ppm by volume ('CO2') or ppb by volume ('CH4', 'N2O').

Source

MacFarling Meure et al. 2006 via NOAA.

Examples

head(greenhouse_gases)