Revelations 11:18. This was a stumbling block for me (shame on me eh). When we were studying the Revelations book, the elder took his time to elaborate on how wicked this world is, and went on and on about the ecological disasters our world is facing, and how those wicked people only care about the money while they destroy the Earth.
Now, although I live in a middle-road developing country (Romania), the people here by no means are ecological friendly. Those wicked people who are destroying the Earth, are not some special class of people isolated in their ivory tower with elaborate plans to harm any living, but it is us. JWs distantiate themselves from any responsability in this case too, but it's the cold hard truth that we, the people in (mostly) developed countries are all doing our share in destroying the Earth (except very few individuals).
Far be it from me to be proud of this, but to actually take a step in any issue is to recognize that you are part of the problem. http://www.myfootprint.org will calculate how much Earths would we need, if everyone was living like you live. My result was 1.25 Earths, and I doubt there are many witnesses living in developed countries whose results are below 1.
Yes 'brothers', we all are part of the ones who are destroying the Earth. Here's a tip: next Saturday instead of field service go and plant a tree. Then "perhaps you will be sheltered on the day of the LORD's anger" (Zephaniah 2:3).