On October 18, 2025, at 09:45 AM, an international summit on climate change is set to take place in a major city, bringing together world leaders, scientists, and environmental activists. The event aims to discuss urgent actions needed to combat climate change and to set new, ambitious targets for reducing carbon emissions. In the lead-up to this event, various activities and discussions have occurred: - **One Month Ago (September 18, 2025)**: A series of protests and awareness campaigns were held globally, urging governments to take stronger action on climate issues. Activists gathered in major cities to demand accountability and transparency in environmental policies. - **One Year Ago (October 18, 2024)**: A significant report was released by the Intergovernmental Panel on Climate Change (IPCC), highlighting the alarming rate of climate change and its impacts on ecosystems and human societies. This report served as a catalyst for the upcoming summit. - **Five Years Ago (October 18, 2020)**: The COVID-19 pandemic had a profound impact on global emissions, leading to a temporary decrease in pollution levels. This period sparked debates about sustainable recovery and the importance of green initiatives in rebuilding economies. - **Ten Years Ago (October 18, 2015)**: The Paris Agreement was still fresh, with countries beginning to implement their commitments to reduce greenhouse gas emissions. This marked a pivotal moment in international climate policy. - **Fifty Years Ago (October 18, 1975)**: The first Earth Day was celebrated, raising public awareness about environmental issues and marking the beginning of a global movement focused on sustainability and conservation. - **One Hundred Years Ago (October 18, 1925)**: The world was experiencing the Roaring Twenties, a time of economic prosperity and cultural change. However, this era also saw the early signs of environmental degradation as industrialization accelerated. - **Five Hundred Years Ago (October 18, 1525)**: The Renaissance was in full swing in Europe, leading to advancements in science and exploration. This period laid the groundwork for future environmental studies, albeit with little awareness of ecological impacts. - **One Thousand Years Ago (October 18, 1025)**: The world was in the midst of the Middle Ages, a time characterized by feudalism and agrarian societies. Environmental awareness was minimal, and human impact on nature was largely unrecognized. This timeline illustrates the evolution of environmental awareness and policy leading up to the significant event on October 18, 2025.