SO the Earth is heating up ("The Earth on cusp of becoming 'hothouse'" The Herald, August 6). What a surprise.

I am an old woman now, but I have spent most of my adult life aware of this threat and trying in a limited way to do something about it. I don't fly, I don't drive, I try to limit my consumption of non-renewable resources, I subscribe to the relevant organisations and charities. Meanwhile most of the rest of the world carries on regardless as if there is no tomorrow. In fact, if humanity continues on its merry way, there will be no tomorrow.

It seems as if all our grandchildren will be saying what I have predicted they will say about us: "they knew what to do but they didn't do it".

Rose Harvie,

82 Bonhill Road, Dumbarton.