1. Our Carbon Footprint is the measure of how much carbon dioxide is associated with our lifestyle in terms of the products we buy, how much we travel (and by what means), how we heat our homes, the food we eat, and how much electricity we use. We will reduce this by altering our lifestyles (go by bike instead of car, eat meat only 1-2 times a week, buy local fruit and vegetavles instead of trasnporting them long distance – there are loads more examples ….) and also by finding other ways to produce energy than by fossil fuels – more renewable energy. Look at http://www.oneplanetliving.org/index.html.
2. Global Warming is linked to 1. above – we need to reduce our dependence on fossil fuels and find alternatives….
People may shout at me here but the one (and only) way to reduce out carbon footprint and to maintain energy use at the level that we will find acceptable is to use nuclear power. This will reduce carbon emissions and also reduce biosphere pollution immensely. Of course, the current price we pay is that we exchange that sort of pollution for an even nastier form of pollution – the radioactive legacy of the residues after nuclear reactors are emptied. As those of you who have been reading my answer will be getting fed up of hearing, my research has led to the development of a means by which we can take out the radioactive material from this waste and put it into a new class of reactor that will burn it up and convert into non-radioactive elements. This will be the way we generate energy in the future, I am sure.