The level of carbon dioxide in the atmosphere measured by a weather station at the Mauna Loa Observatory ... at the EU's ...

Scientists fear an "irreplaceable" loss of key climate data as Trump's cost-cutting plans target a key CO2 monitoring site in ...

The weather app on your phone isn't as accurate ... and an AC-powered indoor one that goes beyond competitors to monitor CO2 and sound levels. It is expandable, though not in a great way: You ...

Why it made the cut: The Ambient Weather WS-2902C is Amazon’s best-rated home weather station and has robust weather monitoring capabilities.