You can do something in the UK:
Replace a regular incandescent light bulb with a compact fluorescent light bulb
CFLs use 60% less energy than a regular bulb. This simple switch will save about 300 pounds of carbon dioxide a year.
Move your thermostat down 2° in winter and up 2° in summer
Almost half of the energy we use in our homes goes to heating and cooling. You could save about 2,000 pounds of carbon dioxide a year with this simple adjustment.
Choose energy efficient appliances when making new purchases
Wrap your water heater in an insulation blanket
Use less hot water
Use a clothesline instead of a dryer whenever possible
Turn off electronic devices you?re not using
Unplug electronics from the wall when you?re not using them
Even when turned off, things like hairdryers, cell phone chargers and televisions use energy.
Only run your dishwasher when there?s a full load
Recycle at home and at work
Buy recycled paper products
Plant a tree - A single tree will absorb one ton of carbon dioxide over its lifetime.
Buy locally grown and produced foods
Buy fresh foods instead of frozen
Frozen food uses 10 times more energy to produce.
Seek out and support local farmers markets
They reduce the amount of energy required to grow and transport the food to you.
Buy organic foods as much as possible
Avoid heavily packaged products
Eat less meat