Throughout the novel, Charlie’s gradually recovered memories of childhood tell a story that parallels the story that unfolds over the course of the experiment. As Charlie struggles to become emotionally independent and tries to form a deep bond with Alice, his memories shed light—for him and for us—on why this development is so difficult for him. Memories of his mother, Rose , instilling sexual shame in him arise when Charlie experiences this shame in the present. Likewise, Charlie’s memories of being mistreated for his disability arise concurrently with his attempts to determine his new status in society. Charlie’s increased intelligence enables him not only to recall things he has forgotten but also to understand the context of thoughts that earlier confused him. Charlie can see his past more clearly than he saw it while he was living it; in effect, he is learning about his past life as vividly and quickly as he is learning about his new life. The information Charlie garners from one life is always relevant to his grappling with the dilemmas of the other.
The central theme in Flowers for Algernon is Man Playing God. The basic structural layout of the novel supports this theme. The novel's chronological timeline begins March 3 and ends November 21. The seasonal interpretation is obvious. Charlie's surgery takes place in the spring, a time of new beginnings, new growth, and re-birth. The progress reports, and our journey with Charlie, come to an end in the heart of autumn. Autumn is the season that displays nature's decline. Autumn isn't death as symbolized by winter, but it is the loss of new growth and the beginning of regression. A synonym for autumn is "fall," and that word, in the verb form, is what we witness in Charlie.
Human activity is not solely responsible for climate change. It can occur due to natural causes as well. Large volumes of sulphur dioxide, ash, water vapor and dust escape into the atmosphere when a volcano erupts. Volcanoes also produce aerosols which reflect solar energy back into space. This cools the atmosphere. However, although volcanoes produce CO2 and greenhouse gases it is minor when compared to what we humans emit into the atmosphere. Changes in the Earth’s orbit and changes to the ocean’s currents are also natural causes that cause climate change.