Featuring an interview and session with Chuck Prophet, former member of Green On Red. 
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Today's Riddoch Questions:
This week it’s the 100th - and final - Riddoch Questions and we’re going out on a big one with a climate change special featuring Scottish climate change minister Stewart Stevenson. Also joining Lesley this week will be green campaigner George Monbiot, Ecological Design Architect Howard Liddell, and Scottish Green Party leader and MSP Patrick Harvie.
They’ll be discussing the targets set by the UK and Scottish governments to reduce carbon emissions by 34% and 42% respectively – are these realistic? Too little, too late? Or ambitious and achievable?
And what do we have to do now in order to reach them? Is it a case of tweaking our green habits and recycling a bit more? Or must we drastically change our lifestyles, abandon our cars and put solar panels on all our homes?
Email your questions now on these topics to riddoch@bbc.co.uk. Add your phone number if you want to put the question in person. On Friday text your views to 80295 and call 0500 92 95 00.
