The trick now is to integrate the two entities, for the benefit of both people and the earth.

Urban regions, for all of their assets, are rife with serious issues, such as air pollution.

Pollutants remain in the area, standing as a risk to public health. The World Health Organization (WHO) states that air pollution accounts for 4.2 million deaths annually. And a Harvard University study associates air pollution with elevated COVID-19 death rates.

Elevated air pollution exacerbates environmental problems as well, which advances the climate crisis. Many modes of transportation and escalated energy use in urban areas have dangerous side effects that call for immediate action.

Bringing nature to the city is the ultimate action. Add greenery to the landscape to cut down on carbon emissions. A green city will also bring about benefits for hot weather, as cities sometimes suffer from the urban heat island effect. This phenomenon contains heat inside a community—rendering it difficult to facilitate everyday living. Trees and green spaces offer shade and comfort to residents.

Cities such as Melbourne boast plentiful urban green spaces, and with very good reason.

The rooftops of buildings should be lined with gardens. The construction of walls also can host vertical gardens, with rainwater trickling down and feeding the plants—also providing each host city with endless aesthetic value.

And while every city has its parks, we need more green spaces alongside sidewalks, parking lots and roads—offsetting carbon emissions and providing more space for outdoor recreation.

In addition, urban flooding can be curtailed by the addition of absorbing mulch and grass to the earth.

And, of course, green makes people feel good—it lightens the atmosphere and beautifies the landscape.

Major world cities like Sydney, London, and Bogota are leading the world down a garden path—and toward the achievement of a greener environment.