Ecological Footprint | Test your ecological footprint
赞助What is your ecological footprint? Take the 5 minute test! A quick and fun way to calculat…4.5/5 (212 条评论)
Reduce Your Carbon Footprint | Free CO2 Footprint Calculator
赞助Calculate your emissions simply & efficiently with myclimate & support climate projects. Vi…Service catalog: Consulting Services, Education, Climate Protection
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