What will we be eating for dinner? In the next 50 years, another two to three billion people will be living—and eating—on Earth. With so many mouths to feed, scientists are looking for ways to guarantee there will be enough food to go around. This may include developing super crops that resist disease, insects, and weather extremes, so that they yield bigger harvests. Eating readily available sources of protein, such as insects and algae, simple, one-cell plants, is another suggestion.
But probably the most unusual idea of what will be on our table years from now is meat grown in laboratories. Why would scientists want to do that? Raising livestock takes up a lot of land. The animals consume huge amounts of plants and put out greenhouse gases that are bad for the environment.
Although it is technically possible to make test-tube meat, scientists are not able to produce it in large amounts. Plus it takes about one million dollars to produce 8 ounces of test-tube beef. (That's one pricey steak!) Until scientists figure out how to make it cheaper and quicker, test-tube meat will only be food for thought.