CO2 levels measured at Mauna Loa Observatory in Hawaii have risen drastically in the last two years. There’s no natural phenomenon, such as El Nino, that could have caused this, so they’re afraid that global warming could be speeding up.
CO2 levels measured at Mauna Loa Observatory in Hawaii have risen drastically in the last two years. There’s no natural phenomenon, such as El Nino, that could have caused this, so they’re afraid that global warming could be speeding up.