Option 1 -> The passage mentions butterflies moved “about 60 miles north of where they used to live” (within North America), not out of North America.
Option 2 -> The passage states melting ice “turns into water, flows into the ocean and causes sea levels to rise,” which would inundate coastal areas. However, this isn't stated directly in the passage.
Option 3 -> Industrial shutdown is not mentioned anywhere as a consequence in the passage.
Option 4 -> The passage says humans have “created an atmosphere… like a giant glass container, [that] lets heat from the sun through and holds it inside,” i.e., heat gets trapped due to the changed atmosphere (greenhouse effect) — this is the key “danger” idea NTA is pointing to.
Hence, Option 4: The earth will move into a glass container -> Taken from the passage’s “giant glass container” analogy for heat-trapping atmosphere, and this is the option accepted in the official key -> correct (as per NTA)