Write a short script to perform the following steps

  1. Import the data on atmospheric CO2 from the link below into R
data_url="http://scrippsco2.ucsd.edu/assets/data/atmospheric/stations/in_situ_co2/monthly/monthly_in_situ_co2_mlo.csv"
  1. Remove the header of the file to retain only the data
  2. Filter out missing data (-99.99)
  3. Update the column names using the colnames vector below
colnames=c("year","month","excel","decimal_year","co2","co2_seasonal","co2_fit","co2_seasonalfit","co2_filled","co2_seasonalfilled")
  1. Calculate the mean CO2 for each year from the co2 column
  2. plot a simple ggplot line graph of mean annual CO2 concentration each year as shown below
## Response [https://scrippsco2.ucsd.edu/assets/data/atmospheric/stations/in_situ_co2/monthly/monthly_in_situ_co2_mlo.csv]
##   Date: 2024-10-02 20:16
##   Status: 200
##   Content-Type: text/csv
##   Size: 84.7 kB
## <ON DISK>  /var/folders/vr/ykn9bsvj7qj5r2rgt5wg175xg3t_n5/T//RtmpX6qPLy/filecf1b2a282fe8
## Warning: One or more parsing issues, call `problems()` on your data frame for details,
## e.g.:
##   dat <- vroom(...)
##   problems(dat)