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. The scientists claimed that the amount of water, fertilizer and mowing that lawns require is a problem — especially when we use gas-powered mowers that emit carbon monoxide and other toxins into the air. The use of those mowers negates any positives of the lawn pulling carbon dioxide out of the air.
The ecologists also pointed out that globally, lawns occupy an amount of land equivalent to the area of England and Spain combined. In arid regions of the U.S., lawns are responsible for 75 percent of household water consumption. To make matters worse, weed killers and fertilizers used to keep lawns pristine find their way to the water table.
If you think artificial turf is a solution, think again. Turf does not contribute to carbon sequestration — the process of removing carbon dioxide from the atmosphere — and it also causes problems with water runoff. It is also possible that it could poison local water tables.
Ignatieva and Hedblom said that some communities have started allowing natural meadows to grow instead of lawns. In places like Berlin, residents have allowed the landscape to grow wild.
These ideas are a step in the right direction, but the ecologists suggest the need for more scientific research into some plant types that could develop into naturally short grass alternatives that don’t require a lot of water for survival. The study also urges people to change their way of thinking when it comes to their lawns.
Images via Daniel Watson