One of the most important changes I would like to see in the future has to do with our energy consumption and production. It is vital that we switch to renewable sources of energy soon, as its severely harmful to the environment. In fact, the Earth's fossil fuel reserves are running quite low (about 47 years' worth of oil remaining. Source: https://lisbdnet.com/how-much-oil-left-on-earth/). Establishing a reliable grid of solar panels/wind turbines/nuclear facilities across the planet may be the best thing we can do as a society, given the fact that our planet will not survive otherwise. Such a change will be beneficial not only in the planet-saving sense, but also in the quality-of-life sense. We can ensure that the next generations live in a world free of pollution, coexisting with the ecosystem - instead of destroying it.