Heartland Institute Research Fellow Linnea Lueken looks at sea level rise, and whether or not it poses an existential threat to coastal communities.
That data: NASA satellite readings that date back to 1993 show that sea level rising at a pace of just 1.2 inches every decade, and older records from tide gauges show a rate of about 1 foot per century.
Hardly an existential threat, let alone one to the world's coastal cities.