Eco-friendly Houses
Some people think about building wooden houses. They deal with the wood in a special way. So the house is better to prevent fire and ants. The best thing is that the house is covered with green plants everywhere. This can help to take in greenhouse gases in the city. We might see a few houses similar(相似的) to this now. But they will become more common in the future.
Underground Skyscrapers
They are buildings underground. They go many stories into the ground. People can live, work and do sports all underground. During earthquakes, these buildings will not fall. Mexico is thinking about building a skyscraper like this. It looks like a pyramid upside down(倒金字塔). There is an empty space in the center of the building. So people underground can enjoy natural light(自然光) and air.
Many companies think of building floating houses. Instead of using electricity, floating houses will use solar power. They can rise, fall and turn indifferent directions with the moving water. People can also grow plants on roofs. How do they water the plants? By recycling waste water!