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Global warming and climate change are two of the world’s most urgent challenges today. The term “global warming” refers to the warming of the world caused by ozone layer holes. The ozone layer shields our world from the sun’s deadly UV radiation. This phenomenon causes our world to warm, and this phenomenon is known as global warming, which leads to climate change. There are numerous man-made ways for holes in the ozone layer to form, all of which are hazardous to humans and our entire world.
Climate change affects all parts of the earth. Polar ice barriers are melting, and sea levels are rising. Harsh weather events and rainfall are becoming more prevalent in some areas, while others are facing more extreme heat waves and droughts.
The phenomenon of Global Warming if continued unchecked will have profound implications.
Temperature rises, water scarcity, increasing fire hazards, drought, weed and insect invasions, significant storm damage, and salt invasion are just a few of the ways that global warming impacts ecosystems. Some of Australia’s most iconic natural wonders, such as the Great Barrier Reef, are already under threat. Many terrestrial, freshwater, and marine species have already relocated. If global average temperatures continue to rise unabated, some plant and animal species will face an increased danger of extinction. Climate change affects all parts of the earth. Polar ice barriers are melting, and sea levels are rising.
As the temperature rises, many effects such as hotter summers, rising ocean temperatures, melting polar ice, and increased storm activity are affecting components of our environment. These extend beyond ordinary weather variations.
If we do not take more steps to mitigate the current climate impacts, global temperatures are expected to rise by 2-4 °C (3-7 °F) by the end of the century. This type of warming could cause catastrophic melting of the ice sheets in Greenland and Antarctica, causing sea levels to rise and drown the majority of the world’s major coastal cities.
Wildlife and their habitats will be devastated, resulting in mass species extinction. Superstorms, droughts, and heat waves would become more frequent and severe, causing major health problems and sickness.
Agricultural output would fall, potentially resulting in global food shortages and disaster. Water supplies would be depleted all throughout the world, rendering certain areas uninhabitable.
Effects of global warming will be the rise in sea and ocean levels.
As greenhouse gasses trap more solar energy, the oceans absorb more heat, resulting in higher sea surface temperatures and rising sea level. Changes in ocean temperatures and currents caused by climate change will cause changes in global climate patterns.
When it comes to climate change, sea level can rise in two ways. To begin, as the oceans warm as a result of rising global temperatures, Seawater expands, taking up more area in the ocean basin and raising water levels. The second mechanism is melting land-based ice, which contributes water to the ocean.
How is sea level rise related to climate change
Global and relative sea level trends are two distinct metrics. Just as the Earth’s surface is not flat, the ocean’s surface is not flat—that is, the sea surface is not changing at the same rate everywhere over the world. Because of many local factors, sea level rise at specific locations may be greater or less than the global average: subsidence, upstream flood control, erosion, regional ocean currents, variations in land height, and whether the land is still rebounding from the compressive weight of Ice Age glaciers.
Projected impact of climate change on agricultural yields by the 2080s, compared to 2003 levels (Cline,2007)
Figure 1
Cline (2007) concluded that by 2080, assuming a 4.4oC increase in temperature and a 2.9oC increase in precipitation, global agricultural output potential is likely to decrease by about 6%, or 16% without carbon fertilization, based on a consensus estimate of six climate models and two crop methods of modeling. Cline predicted a range of output potential declines ranging from 10% to 25% across the zone. As climate change worsens, forecasts suggest that by 2080, agricultural output potential in certain African countries could be reduced by up to 60% (on average 16–27%), depending on whether Carbon fertilization has an effect.
Conclusion
In this article we learned, Long-term changes in temperature and weather patterns are referred to as climate change. These movements may be natural, but human activity has been the primary cause of climate change since the 1800s, mostly owing to the combustion of fossil fuels such as coal, oil, and gas, which produces heat-trapping gasses. Particularly temperature rises, are having an impact on natural systems all over the world, and that these temperature increases are almost certainly the result of anthropogenic greenhouse gas emissions.
