What is the impact of the author's choice to include these sentences in the last paragraph of the article? While the iron of public sentiment is hot let us strike hard. In particular, a reservation or national park of the only other species of Sequoia, the sempervirens, or redwood, hardly less wonderful than the gigantea, should be quickly secured. It will have to be acquired by gift or purchase, for the Government has sold every section of the entire redwood belt from the Oregon boundary to below Santa Cruz. The call to action changes the mood of the article from emotional to aggressive. The call to action makes an impression because it is the last thing readers read. The call to action has less of an impact because it is so late in the article. The call to action strengthens the author's credibility as an expert on sequoias.