Journey to the End of the Earth

The author, Tishani Doshi, makes this claim about Antarctica because of several extraordinary scientific and environmental reasons: 1. Antarctica preserves Earth's history: • Antarctica has been geographically isolated and largely unaffected by human civilisation. Its ice cores — cylinders of ice drilled from the Antarctic ice sheet — contain ancient air bubbles that preserve samples of the Earth's atmosphere from thousands of years ago. • Scientists can study these ice cores to understand what Earth's climate was like hundreds of thousands of years ago — before industrialisation, before human civilisation, before even the dinosaurs. • The continent is, in a sense, a living archive of Earth's history. 2. Antarctica predicts the future: • The ice sheet of Antarctica contains 90% of the world's ice and 70% of its fresh water. If this ice melts due to global warming, sea levels worldwide would rise catastrophically — displacing billions of people and submerging coastal cities. • The rate at which the ice is melting is an indicator of how fast climate change is progressing. • The hole in the ozone layer over Antarctica — caused by human pollutants — is a leading indicator of environmental damage. What happens in Antarctica affects the entire planet. 3. A 'primal' land: • Antarctica was once part of Gondwana, the supercontinent. Six hundred million years ago, it was a lush, warm landmass. It has witnessed the full sweep of Earth's geological and biological history. • Its ice-bound silence represents what the Earth was before human intervention and what it could become again if we destroy our climate.

'Students on Ice' is an educational programme founded by Canadian explorer and educator Geoff Green. It brings high school students from around the world to the polar regions — especially Antarctica — for expeditions that combine education, adventure, and environmental awareness. Purpose of taking students to Antarctica: 1. Environmental education with direct experience: • Geoff Green believed that text-book learning about climate change and environmental destruction could not match the impact of actually standing on the Antarctic continent and witnessing its pristine beauty and fragility. • When students see the scale of the ice sheets, the colonies of penguins, the emptiness and silence, they are moved in ways that no classroom can replicate. 2. Creating future environmental leaders: • The programme targets 'the young' — those who will inherit the planet and who will be adults when the most catastrophic effects of climate change are felt. • The idea is that a young person who has stood in Antarctica and felt its power and fragility will carry that experience throughout their life — influencing their careers, their choices, and their advocacy. 3. Breaking down the 'us vs. them' mentality: • Antarctica belongs to no one nation. The Antarctic Treaty of 1959 designated it as a place of peace and science for all of humanity. Taking young people from all over the world to this 'communal' space promotes a sense of shared human responsibility for the planet. 4. The author's personal impact: • Tishani Doshi writes that the experience made her understand 'the insignificance of human existence' in the grand sweep of geological time — a humbling and transformative insight. This is what the programme hopes to give every student.

Tishani Doshi uses her journey to Antarctica to highlight several critical environmental concerns: 1. Global warming and melting ice: • The Antarctic ice sheet is melting at an accelerating rate due to rising global temperatures caused by greenhouse gas emissions. • If the West Antarctic ice sheet collapses, sea levels could rise by 5 metres — catastrophic for billions of people living in coastal areas. 2. Ozone depletion: • The hole in the ozone layer is most severe over Antarctica, caused by human-produced chemicals (CFCs — chlorofluorocarbons). • The ozone layer protects the Earth from harmful ultraviolet radiation. Its depletion affects plant life, plankton, and the food chain. 3. The fragility of the phytoplankton ecosystem: • Phytoplankton in Antarctic waters are the base of the entire Southern Ocean food chain. They are also responsible for absorbing carbon dioxide and producing oxygen. • Rising UV radiation and changing ocean temperatures threaten phytoplankton populations. A collapse of phytoplankton could affect the entire global food chain and atmosphere. 4. Carbon dioxide accumulation: • Ice cores show that current levels of CO₂ in the atmosphere are higher than at any point in the past 650,000 years — directly linked to fossil fuel burning. 5. The interconnectedness of global systems: • Antarctica reminds us that all Earth's systems are interconnected. What happens in the Southern Ocean affects weather patterns, ocean currents, and biodiversity worldwide. 6. The need for collective action: • The essay ends with a sense of urgency: Antarctica's beauty and fragility is a reminder that humanity must act collectively and swiftly if this 'final frontier' — and by extension, the entire planet — is to be preserved for future generations.