Исправить предложения 1) if we had known about the effects of global warming, we would act sooner 2) the ice caps wouldn't have started to melt if people have protected the environment 3) the city wouldn't have flooded if it had

1.If we were aware of the consequences of global warming, we would act more quickly
2.Ice caps would not melt if people protected the environment
3.The city was not flooded if it