Venus is the answer. That planet has a dense atmosphere of CO2, which has produced a runaway greenhouse effect.
Interspecific competition
A type of competition in which organisms belong to different species compete with each others for same resources.
Example
Leopard and lion.
intraspecific competition
A type of competition in which organism belong to same species compete with each others for same resources.
Example
birds for breeding or shelter compete with each others
Only toms idea could be scientific since it is testable, can be tested by others, have a hypothesis, and be proven