Of the total area that is used by humans (Agriculture, Urban and Built-up Land),

  • urban and built-up land is 1m km²,
  • agriculture is 48m km²,

so agriculture is 48 of 49 millions km² used, that’s 98%. The remaining 2% are all streets and housing and other infrastructure together.

  • gandalf_der_12te@discuss.tchncs.deOPEnglish
    4·
    9 hours ago

    I guess if people live there, no matter how few, it gets counted as ‘habitable’.

    My guess is

    • barren land = little water. there’s probably a maximum amount of precipitation it must have a year.
    • glaciers = no energy. there’s probably an upper limit on average yearly temperature or sth
    • habitable land = has both water and sunlight (literally anything plants need to thrive)