When plant matter burns, it releases a complex mixture of gases and aerosols into the atmosphere. (sciencedaily.com)
The problem then lies in knowing how to tell the difference in a three dimensional mixture of gases such as the atmosphere which has many chaotic movements at all levels. (newclimatemodel.com)
The Arctic ocean floor hosts vast amounts of methane trapped as hydrates, which are ice - like, solid mixtures of gas and water.These hydrates are stable under high pressure and cold temperatures. (sciencedaily.com)