I've heard as that we have had technology from alien technology since the 50's. Technology that we could use to correct climate change and clean up our air and water. We could make sure no one is hungry or thirsty with clean water. We could stop depending on oil or fossil fuels for our energy and get it almost for free. So then, why are we not doing it? We wouldn't be fighting with other countries for scarce natural resources and wars would no longer be an issue.