出版物
8 月 13 日 2010: Economic crisis slows worldwide CO2 emissions
8 月 10 日 2009: Climate protection just a lot of hot air – Global CO2 emissions at record levels
8 月 13 日 2010: Economic crisis slows worldwide CO2 emissions
8 月 10 日 2009: Climate protection just a lot of hot air – Global CO2 emissions at record levels