Nam: Hey guys, look at this notice! Our school is holding a Green Classroom Competition. The greenest classroom will win an ecotour!
Mark: How exciting! But how will the classrooms be judged?
Nam: It says here that classrooms will be judged on the following: raising environmental awareness, reducing our carbon footprint, and using resources efficiently.
Mai: I guess we should start by cleaning up our classroom more frequently and having more plants in it.
Nam: Yes, this is the easiest thing to do, but we also need to change our classmates' behaviour so that we can develop eco-friendly habits in our class.
Mark: That sounds harder. I notice many of our classmates buy plastic water bottles every day and throw them away after a single use.
Nam: Plastic takes hundreds of years to decompose, which is certainly not good for the environment.
Mai: Well, we can place a big jug full of drinking water in the classroom so that we can refill our reusable bottles.
Mark: Good idea! Now, to reduce our carbon footprint, we should also make sure we turn off the lights and air conditioners before leaving the classroom. Sometimes people rush out and leave them on, which is a waste of electricity.
Mai: Sure. Why don't we place some brightly coloured signs next to all doors to remind people?
Nam: So many good ideas already. Let's meet after school to discuss more. I hope our class wins the ecotour!
Mark: That'd be fantastic!
Mai: Yes. Let's do our best!