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Carbon Dioxide Passes Global 400 ppm MilestoneAll carbon dioxide monitoring stations in the northern hemisphere averaged above 400 ppm for April.
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Here Are 5 National Landmarks Facing Climate ThreatsA new report looks at the U.S. cultural heritage sites most threatened by rising seas, wildfires, and storms.
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NOAA: Last Month Tied for Globe’s Hottest AprilLast month tied as the hottest April on record according to new NOAA data released Tuesday.
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Great Barriers: Reefs First Line of Coastal DefenseCoral reefs are an amazingly effective first line of defense for coastal communities.
