Does the risk of melting icecaps, rising sea levels and drought across vast areas of the world mean that we have to abandon our relatively comfortable way of life?
Does it mean we have to throw out labour-saving (yet energy-hungry) gadgets and scrap 4x4s if we are to safeguard the planet for future generations?
Does it mean a host of new green taxes like the swingeing parking charges proposed by the Liberal Democrat council in Richmond-upon-Thames?
Or is there a less drastic approach? One that harnesses technology to protect the planet without penalising hard-working families.
The so-called Chelsea tractors may be a fashion accessory in trendy parts of London. But in rural Shropshire, flexible vehicles can be essential to much commercial and family life.
We cannot sit back and do nothing. Prudence dictates that we promote energy-efficiency, recycle rubbish, encourage renewable fuels and switch to low-carbon options where possible.
I back such measures. And I back David Cameron's call for a Climate Change Bill now to set annual targets for reducing carbon emissions. This will apply pressure to successive Governments to achieve a 60% reduction in carbon dioxide by 2050.
Tony Blair should listen when not just the Tory leader, but a majority of MPs from all parties say: "Can I have the Bill please?". You can join this call for action in this year's Queen's Speech by visiting www.canihavethebillplease.co.uk. It may spare our children and grandchildren tougher choices in the future.
