The lush green lawns surrounding many homes, businesses, parks and other outdoor spaces might not be the greatest idea, according to Australian scientist Maria Ignatieva and Swedish scientist Marcus Hedblom. In a new study published in the journal Science, the urban ecologists suggested that we need to rethink the modern lawn in favor of more sustainable options. Ignatieva and Hedblom said that the negative environmental consequences of green lawns far outweigh the natural benefits, and we need to start exploring new forms of groundcover.