Searched over 200M research papers
10 papers analyzed
Some studies suggest early Mars may not have been kept warm by a dense CO2 atmosphere due to CO2 condensation, while other studies suggest volcanic eruptions and greenhouse gases like CO2, H2, and methane could have warmed early Mars, potentially explaining the presence of liquid water.
20 papers analyzed
The greenhouse effect on Mars has been a topic of significant interest, particularly in understanding how early Mars could have supported liquid water despite a faint young Sun. Various studies have explored the role of different greenhouse gases, atmospheric conditions, and other mechanisms that could have contributed to warming the Martian surface.
CO2 and H2 as Greenhouse Gases:
Role of CO2 Clouds and Condensation:
Episodic Greenhouse States:
Reduced Greenhouse Atmosphere:
Artificial Greenhouse Gases:
Impact of Dust and Trace Gases:
The research indicates that while CO2 alone may not have been sufficient to warm early Mars, the presence of additional greenhouse gases like H2 and CH4, episodic CO2 injections, and artificial greenhouse gases could have contributed to periods of warmer climates. These mechanisms, along with geological evidence of a reducing atmosphere, suggest that early Mars could have supported liquid water intermittently, explaining the fluvial features observed on its surface.
Most relevant research papers on this topic