| co2emiss {UsingR} | R Documentation |
Carbon Dioxide Emissions from the U.S.A. from fossil fuel
Description
Carbon Dioxide Emissions from the U.S.A. from fossil fuel
Usage
data(co2emiss)Format
The format is: Time-Series [1:276] from 1981 to 2004: -30.5 -30.4 -30.3 -29.8 -29.6 ...
Details
Monthly estimates of 13C/12C in fossil-fuel CO2 emissions. Originally at http://cdiac.esd.ornl.gov/trends/emis_mon/emis_mon_co2.html; now off-line.
At one time: "An annual cycle, peaking during the winter months and reflecting natural gas consumption, and a semi-annual cycle of lesser amplitude, peaking in summer and winter and reflecting coal consumption, comprise the dominant features of the annual pattern. The relatively constant emissions until 1987, followed by an increase from 1987-1989, a decrease in 1990-1991 and record highs during the late 1990s, are also evident in the annual data of Marland et al. However, emissions have declined somewhat since 2000."
Source
http://cdiac.esd.ornl.gov/ftp/trends/emis_mon/emis_mon_c13.dat (off-line)
Examples
data(co2emiss)
monthplot(co2emiss)
stl(co2emiss, s.window="periodic")