Finding Authentic Video Pronunciations...
Scanning thousands of native English clips with synchronized subtitles and exact timestamps.
Pronunciation Guide
Loading video player...
So the greenhouse gases, we're all obsessed by CO2, but the major greenhouse gas in the atmosphere is water vapor, followed by carbon dioxide, methane, nitrous oxide,and CFCs. This is the Mauna Loa Observatory that shows CO2 rise every single year since 1958 whenKeeling started to measure it.
Listen to native speakers pronounce “cfcs” in real conversational contexts with synchronized timestamps and subtitles.