As global warming becomes more and more serious, each one of us must take action to help.

Changing what you eat could easily have a significant effect because animal agriculture creates about 14% of the world's greenhouse gas emissions (排放). 【小题1】 Each kilo consumed produces 26.5 kilos of CO2 emissions, five times more than chicken or turkey. Changing to plant-based diets could reduce emissions greatly.

Nearly all transport relies on fossil fuels. In the US, driving one mile in an average 2016 car emits 404 grams of CO2 equivalents per mile. But taking nearly any other means of transport will reduce CO2 emissions. 【小题2】

【小题3】 But a few quick changes can make a difference. Switch from incandescent (白炽灯) lights to LEDs. They use a quarter of the energy and last 25 times longer. And taking for showers, the average water heater is set to 140 degrees Fahrenheit. But bringing it down by 20 degrees can save 250 kilograms of CO2.

Think before you buy. The fashion industry creates about 10% of global greenhouse emissions and consumes more energy than flight and shipping combined. 【小题4】 If you' re buying food, bring your own containers and just get the amount you need.

Plant a garden instead of building a yard out of cement (水泥), the production of which creates 8% of global CO2 emissions a year. 【小题5】

So from a burger to a cyclist, no one thing will have a big influence, but lots of little things can.

Nowadays, with the popularity of modern traffic and modern communication means, our world is becoming much smaller. Thus our life today is much easier than it was hundreds of years ago, but meanwhile it has brought new problems, the biggest one of which is pollution. For a long time ever since, man has been polluting the earth. The more people, the more pollution.

To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.

Air pollution is still the most serious. It’s bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily.

Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air. Pollution by SO2 is now the most dangerous kind of air pollution. It is caused by heavy traffic. We are sure that if there are fewer people driving, there will be less air pollution.

The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in pollution at the same time.

This is always a busy time of year, but please don’t forget to recycle as much as you can.