Could someone help me if i did any mistake in this with future perfect or continuous ?

Well, it looks like we’ll be having very different weather in the future if climate change continues. What do you mean? Well, they say we’ll be having (have) much higher temperatures here in London, as high as 30*. And remember, we won’t have lain (not lie) on the beach, we’ll be working (work) in 30* which is quite different. And islands like the Maldives will have disappeared (disappear) by 2150 because of the rise in the sea level. They say the number of storms and tsunamis will have doubled (double) by the middle of the century too, so even more people will have moved (move) by then to the cities looking for work. Big cities will have grown (grow) even bigger by then. Can you imagine the traffic? I don’t think there will be a problem with the traffic. Petrol will have run out (run out) completely by then anyway, so nobody will have a car. Someone will have invented (invent) a new method of transport, so we will be flying (fly) around in air cars or something.