No half measures - emphasises how Greenpeace is strong and determined on our behalf. Question Links to picture. Links to personal effects on reader. Adds weight to authenticity. Factual tone enhanced.
Irreversible effects require strong, immediate action if further damage to be avoided.
Links to statistic - designed to shock reader. Request for help implies that the reader is needed by Greenpeace - persuasive. Shows woman involved in campaigning on a high street. Contrast to action in previous pictures as not dramatic action but example of what ordinary reader can do without any specialist skills, training or equipment. Encourages reader to get involved in a small, everyday, way.