Green Data Book 2007, World Bank. Lists C02 statistics by country, including per capita and by country income class. Flight Carbon Emission Calculator เก็บถาวร
"If we closed the gender gap by 2025, the global economy could see a $28 trillion windfall". Business Insider Nederland (ภาษาดัตช์). เก็บจากแหล่งเดิมเมื่อ