GreenhouseGas.class_eval do data_miner do import "greenhouse gas global warming potentials taken from the IPCC AR4", :url => 'https://spreadsheets.google.com/pub?key=0AoQJbWqPrREqdE1tUjBwS1ZHZnBUUG1XcVpkOTVHOVE&gid=0&output=csv' do key 'name' store 'abbreviation' store 'ipcc_report' store 'time_horizon', :units_field_name => 'time_horizon_units' store 'global_warming_potential' end end end