NEW YORK (TheStreet) -- The great climate change debate rages on. In the past few days two influential CEOs -- Apple's (AAPL) Tim Cook and Berkshire Hathaway's (BRK.A) Warren Buffett -- weighed in on the issue, one somewhat indirectly, and the other a bit more directly.
Cook was questioned at Apple's shareholder meeting Friday about the company's sustainability efforts by a representative of The National Center for Public Policy Research.
NCPPR was behind a failed shareholder proposal that sought greater transparency regarding Apple's sustainability efforts, including having all of its power generated from green sources.
The exchange reportedly became quite heated, with Cook making the point that return on investment is not always the driver for the company's initiatives, and that "if you want me to do things only for ROI reasons, you should get out of the stock."
While not the direct rebuke of climate-change deniers that was initially reported, given the NCPPR's stance on the issue, Cook's message was still loud and clear.
Regarding the insurance sector, Buffett said in a CNBC interview yesterday that despite all of the recent focus on climate change, weather events of the past 10 years have not been out of the ordinary; that what some now see as unusual weather-related events, have occurred for decades.
Buffett, whose insurance subsidiaries are on the hook following natural disasters, seemed to raise some doubt that "climate change" has increased weather related disasters. He said that while insurance premiums have so far been unaffected by climate change fears, he loves the "apocalyptic predictions" because they may force insurance premiums higher.