Dog days and Greenhouse effect

Dog days noun - The hot period between early July and early September; a period of inactivity.

Greenhouse effect and dog days are semantically related In some cases you can use "Greenhouse effect" instead a noun phrase "Dog days".

Greenhouse effect noun - Warming that results when solar radiation is trapped by the atmosphere; caused by atmospheric gases that allow sunshine to pass through but absorb heat that is radiated back from the warmed surface of the earth.

Dog days and greenhouse effect are semantically related in high temperature topic. You can use "Dog days" instead a noun phrase "Greenhouse effect".