Rio Tinto is a mining company that offsets its carbon footprint by
investing in mining processes that utilize renewable energy, and it is one of the few mining companies that has been consistently focused on environmentally sustainable practices
for the past few decades. Since mining is a primary industrial industry, it may seem hard to pinpoint how exactly someone can support Rio Tinto (from a consumer perspective). I think that the only way that the average person can show their support is by vocalizing it to the people who run Rio Tinto, which can be done by attending the
Annual General Meeting, which is open to the public.
Another company that uses green energy is General Mills, which owns the brands "Cheerios, Annie's, Yoplait, Nature Valley, Cascadian Farm, Epic, Fiber One, Häagen-Dazs, Betty Crocker, Pillsbury, Old El Paso, Wanchai Ferry, Yoki and
more". To support them, it would be easy enough to just chose those brands when I'm grocery shopping.