That was around the same time as I was 10 and wrote some crappy poem about the environment. I think the part I remember was:
Air pollution, water pollution, acid rain,
all of these problems are not the same.
They hurt our Earth, they hurt our environment.
Let's stop these problems before the Earth's retirement.
Today I have a carbon footprint the size of a Hummer, and an expectation that short of machines that extract CO2 from the atmosphere at a massive rate there's very little we can do to stop some of the most staggering environmental consequences.