PHILADELPHIA (CBS) — A new federal report is warning about the rapidly increasing threat of climate change in the U.S. The study revealed that the Delaware Valley is home to some the fastest-warming states in the entire country.

Research by Climate Central revealed Delaware is the fourth fastest-warming state and New Jersey was not far behind in sixth. Delaware has seen an average temperature rise of 3.15 degrees since 1970. New Jersey’s average temperature has risen 3 degrees in that same span.

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Pennsylvania saw a 2.4-degree bump. Alaska was the quickest warming state.

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The national average temperature rise among states since 1970 is 2.5 degrees.

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Philadelphia saw a 3.1-degree bump since 1970 — the 48th-highest average temperature increase of 245 cities examined. Las Vegas was the fastest-warming city with an increase of 5.76 degrees.