every 10 seconds:
    loop all players:
        loop all blocks in radius 10 around the loop-player:
            if:
                loop-block is a snow block
                {temperature.%loop-player%} > 0
            then:
                add -1 to {temperature.%loop-player%}

every 10 seconds:
    loop all players:
        loop all blocks in radius 10 around the loop-player:
            if:
                loop-block is a snow block
                {temperature.%loop-player%} > 0
            then:
                add -1 to {temperature.%loop-player%}