環保機構~~~~~~~~~~~~急

The first 4 organizations are good example, but I have reservation on 綠田園基金會 as a green group. This organization promote organic farming, instead of conservation on environment/wildlife. You may use Hong Kong Marine Conservation Society(香港海洋保護學會)/Friends of the Earth (地球之友) instead.

綠色力量, 地球之友,長春社,地球仁協會,世界自然（香港）基金會