GLOBAL WARMING BY PRIYA BHOJWANI @..pptx

BY PRIYA BHOJWANI

1. GLOBAL WARMING PRIYA BHOJWANI

2. WHAT IS GLOBAL WARMING ? A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.

3. CAUSES OF GLOBAL WARMING Causes of Global Warming : Greenhouse Effect : Modern global warming is primarily caused by an increase in the magnitude of the  greenhouse effect . This effect warms Earth’s surface and lower atmosphere due to the presence of greenhouse gases such as  water vapor ,  carbon dioxide ,  methane , and  nitrous oxides .  These gases trap heat from the sun, leading to a rise in average temperatures over time 1 . Human Activities : Since the beginning of the Industrial Revolution, human activities have significantly contributed to global warming. The burning of fossil fuels (coal, oil, and natural gas), deforestation, and industrial processes release greenhouse gases into the atmosphere, intensifying the greenhouse effect .

4. EFFECTS OF GLOBAL WARMING

5. CONSEQUENCES OF GLOBAL WARMING Species Decline and Extinction : Rising temperatures, altered precipitation patterns, and habitat loss due to climate change can lead to the decline and even extinction of certain plant and animal species. Loss of Biodiversity : Ecosystems rely on diverse species interactions. As climate change disrupts these interactions, biodiversity is at risk. Invasive Species : Warming temperatures can facilitate the spread of invasive species, which can outcompete native species and disrupt ecosystem balance. Timing of Natural Events : Climate change affects the timing of natural events (phenology). For example, earlier snowmelts impact the behavior of animals like the snowshoe hare . Ocean Acidification : Rising atmospheric CO₂ levels lead to increased CO₂ absorption by oceans, causing ocean acidification. This harms marine ecosystems, affecting coral reefs, shell-forming organisms, and fish populations. Water Cycle Disruption : Altered precipitation patterns impact water availability, affecting freshwater ecosystems, wetlands, and aquatic habitats.

6. MITIGATION STRATEGIES

7. ADAPTATION  Adaptation involves adjusting to the current and expected impacts of climate change. It aims to reduce risks and harm for people and ecosystems. Actions : Infrastructure : Adaptation often involves building or retrofitting infrastructure to withstand climate-related challenges. For instance, improving storm drain systems to manage increased flooding or constructing sea walls to protect coastal areas. Natural Solutions : Restoring wetlands, mangroves, and other natural ecosystems can act as buffers against extreme weather events (e.g., hurricanes) and rising sea levels. Behavior and Policy Changes : Adapting also includes behavioral changes (e.g., choosing crops that can handle warmer seasons and droughts) and policy adjustments (e.g., zoning regulations to prevent building in flood-prone areas). Proactive Approach : Ideally, adaptation should be proactive, anticipating both current and future climate change impacts

8. SOLUTION Certainly! Global warming is a critical issue, and addressing it requires collective efforts. Here are some impactful solutions to combat global warming: Plant Trees : Trees play a crucial role in absorbing carbon dioxide (CO₂) from the atmosphere.  By planting trees, especially in tropical rainforests in countries like Brazil, Indonesia, India, Colombia, and Madagascar, we can help mitigate global warming 1 . Reduce Fossil Fuel Usage : Transportation : Cars are a major source of greenhouse gas emissions. Consider using public transportation, carpooling, or switching to electric vehicles to reduce your carbon footprint. Electricity Production : Opt for renewable energy sources like solar or wind power. Support policies that promote clean energy production and reduce reliance on fossil fuels. Energy Efficiency : Use energy-efficient appliances and LED bulbs. Properly insulate your home to reduce heating and cooling needs. Limit Meat Consumption : Livestock, especially cows, emit methane—a potent greenhouse gas. Reducing meat consumption or choosing plant-based alternatives can help. Advocate for Policy Changes : Support policies that encourage sustainable practices, such as carbon pricing, renewable energy incentives, and stricter emissions regulations. Vote for leaders who prioritize climate action. Raise Awareness : Educate others about global warming and its impact. Encourage sustainable practices within your community. Reduce, Reuse, Recycle : Minimize waste by recycling and reusing materials. Avoid single-use plastics. Support Research and Innovation : Invest in research and development of clean technologies. Explore innovative solutions to reduce emissions and adapt to a changing climate. Remember, every small action counts.  By collectively adopting these solutions, we can make a significant impact in the fight against global warming