Potential Changes to Ecosystems

Chicago’s native ecosystems could change, too. Chicago’s plant hardiness zone has already shifted to that of central Illinois in 1990. If left unchecked, climate changes could make our plant hardiness zone equivalent to that of northern Alabama by the end of the century.

Taking Action

To prepare for changes in Chicago’s growing zone, the City, nurseries, developers and other stakeholders will work together to amend the landscape ordinance to accommodate plants that can tolerate the altered climate. The city will work with these partners to publish a new plant growing list focusing on plants that can thrive in warmer conditions.

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