The easiest thing you can do is to eat less meat. The intensive cattle farms use a lot of resources to produce the meat. Cattle feed is transported all over the earth (CO2), tons of artificial fertilizer is used (emitting a lt of NOx), and cows are a source of methane, becuase their ruminants. If you want to eat meat, buy locally produced, locally fed organic meat, and support sustainable modes of farming.
On food in general: buy local, and accordin to the season. and buy what you need. Locally produced requires less fuel, and less resources. Everything you buy costs energy to make. Do you really need it? will you be using it for a longer time? is it durable.
Another easy thing to do is leave your car at the door, and use a bicycle. Energy for miles, the bicycle is by far the most efficient means of transport. Its healthy and fun too. Any distance below 10 km is easy to do on a proper bike. If you need to travel further, try public transport before a car.
Another thing can be insulating your home, and avoiding use of airconditioning when it's hot. Openng the windows during the night hels to cool the house too. If you are a cold area, air your home once a day. The cold outside air is dryer, and easier to heat that the old damp indoors air. Wear a sweater, and heat only those rooms that you really use.
Avoid using airplanes. I live in europe, and i love travelling by train, even if it takes me a day extra.
All these things have extra benefits. They may improve your health, they reduce the amount of resources that are used up, decrease environmental degradation and they prevent you from visiting the mall. (never really understood malls.. anyway, my dysfunction probably)
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