The HQCasanova Weekly CO2 API is incredibly simple. It's also a frighteningly clear measurement of how our planet is doing. It measures the level of CO2 in the air in parts per million (ppm), a major player in causing global climate disruption.
Last month, ProgrammableWeb reported that Metwit was releasing a free, short term trial plan of the Metwit Weather API to help developers who have created applications using Yahoo! Weather APIs and have been impacted by the shut down of the Yahoo! Geocoding API. Metwit has now announced the addition of a brand new feature to the Metwit Weather API: Push Weather Notifications.