translation.en: Now, many of the people who participate in Earth Witness would focus on ecological problems, human-caused or otherwise, especially environmental crimes and significant sources of greenhouse gases and emissions.
translation.zh: 现在，参与地球证人的许多人 着眼于生态问题，人为灾害或其他 尤其是环保类罪行 以及显著的温室气体来源及排放