Paragraph 2
Topic: one of the main problems tourists cause in
Antarctica
Controlling idea: disruption of scientific research
being conducted there
Paragraph 3
Topic: solution to the problem
Controlling idea: increased cooperation between the
tour organizers and researchers
Paragraph 4
Topic: safeguarding scientific efforts in Antarctica
Controlling idea: amounts to very little if tourists can
still disrupt the ecosystem
Paragraph 5
Topic: guidelines for tourists
Controlling idea: more needs to be done to ensure
guidelines are followed
Paragraph 6
Topic: Antarctic ecosystem is also threatened
Controlling idea: environmental hazards brought by
the increasing stream of tourists
Paragraph 7
No topic sentence – this body paragraph continues
the controlling idea in paragraph 6.
Paragraph 8
Topic: addressing the threat of environmental hazards
Controlling idea: coordinated efforts between tour
operators, their governments, and the scientists
stationed in Antarctica