Cancer Survivor, writing about Health and Fitness as you age

Today is Earth Day, so what am I doing about it? Well, now that it is getting warmer and sunnier here in Austin, I decided I needed to get me a clothes line. I now have that, but the forecast is rain for the next few days and not really any good clothes-drying weather.  But anyway, it got me to thinking about all the hype about the ability of an individual to effect change. I got seriously afraid that this whole effort is akin to how my husband views our budget: "Honey, it's not the $15 we spent on McDonalds that's the problem - it's the big things."  Ok, I may have ahem...underestimated the spending on those particular food items, but the point is the same.  Can I, as a person, really make a change in the overall prognosis for Earth? Are the small changes I am making good and beneficial, but at the end of the day not significant enough, because it is the bigger fish (whole industries, companies, governments), that would truly make an impact? I was listeni...