Change your electricity provider - it's so easy
Switch your electricity to a 100% green tariff. This is overwhelmingly the easiest step to take and the one that can save most CO2. It's easy and only takes a few minutes....we can recommend Good Energy: Tel: 0845 456 1640, www.good-energy.co.uk, and Ecotricity, www.ecotricity.co.uk. Whoever you sign up with make sure it is a 100% renewable tariff.
Drive your car less
Drive less (around 60% of UK road transport CO2 emissions are from cars), use public transport, lift share, ride your bike, or walk.
Insulate and draught proof
Reduce your heating needs by insulating. If you have cavity walls then insulate them, insulate your loft, insulate your windows and doors using double glazed windows if possible.
Switch to renewable heating
Switch to renewable forms of heating like burning wood, and/or solar, and/or wind power, and/or heat pumps, etc.
Turn your heating down a little
Just turning your heating down by a degree or two can make a big difference and save you money too.
Meat is a treat (and eat less dairy)
Farming produces a huge amount of greenhouse gases with the lion's share down to rearing animals. Energy use will be high where animals are intensively farmed and fed exclusively on grains. Eating less meat and dairy (assuming you eat 'a lot' in the first place that is) is also likely to be good for your health. Try to source locally from an organic supplier.
Recyle and compost
Recycle your waste and compost as much as you can.
Reduce the waste that goes to landfill - landfill is a major source of methane.
Flying is perhaps the single activity you are likely to do which produces the most CO2 in the shortest time. Try to fly less often or not at all. If you do fly then many companies provide carbon offsetting allowing you to finance projects that reduce greenhouse gas emissions - if you are going to fly anyway then you might as well do some good at the same time.
Source food and goods that are made locally if possible - haulage accounts for around 20% of CO2 emissions from UK road transport.
Use less electricity
There are many easy ways in which you can reduce your electricity use: use low energy bulbs, turn off the lights in rooms you are not in, dry your clothes outside if possible as opposed to using a tumble dryer, do not leave appliances on standby, only boil as much water as you need.
Don't buy stuff
A lot of the emissions come from the things we buy - I guess it makes sense to consider whether you really need something before buying it. If you can't do without it then if you do not use it a lot can you perhaps share it with someone?
You can read more about global warming and climate change here.