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Global warming is a rise in temperature caused by human activity, leading to habitat loss, species extinction, and climate change. The impact is already being seen, with melting glaciers and disappearing lakes. The future impact could be devastating, with rising sea levels and human starvation. Attempts to prevent further damage include sustainable practices and renewable energy. Some see the impact of global warming as positive, forcing society to become more sustainable.
Global warming is a term used to describe a general increase in temperature across the planet. Since the mid-20th century, some scientists have insisted that human activity has led to unnatural atmospheric changes that will result in a dangerous global warming trend. The impact of global warming awareness has led to a huge public debate about changing human behavior to slow or stop the global warming trend. However, much of global warming’s actual impact has yet to be seen, although some effects are already becoming clear at the dawn of the 20th century.
There are many predictions about how global warming will impact the planet, depending on how much temperatures around the world increase. In the most dire predictions, rising temperatures can cause massive habitat loss and will lead to species extinction, the increase of vast uninhabitable savannahs across the temperate world, dangerous climate change that could lead to the loss of all major coastal cities and even the possibility that humans could no longer survive on the planet.
At the beginning of the 21st century, some of these predictions are already coming true. Increased melting of glaciers has led to severe habitat loss for many arctic creatures, threatening the survival of arctic wolves, polar bears, fish and marine mammals. Some scientists believe that a trend in early spring and late winters influenced the birds’ migration patterns, leading to severe population loss in some species. In Africa, some seasonal lakes used by humans and migratory animals have already completely disappeared due to overall warmer temperatures, threatening the populations who rely on them for drinking water.
Yet many suggest the impact of global warming remains to be seen. With few exceptions, most of the problems related to climate change still do not directly affect the majority of humans on the planet. Some experts believe this will change dramatically by the 22nd century, as rising sea temperatures and resulting weather patterns could force the abandonment of some cities, and previously fertile lands could be rendered unusable by the higher temperatures that eliminate the necessary nutrients from the soil. Human starvation and habitat loss are often seen as potential impacts of global warming in the near future.
It is not known whether the global warming trend can be reversed or slowed by human action, but fear of the impact of global warming has led to some attempts by the human species to prevent further damage. In the 21st century, many countries are attempting to transition to sustainable practices that will not increase heating-related emissions. Hybrid cars, the increased use of alternative energy, and even recycling programs are all attempts to prevent the impact of global warming from reaching devastating levels. Some even suggest that a major impact of global warming is positive; by forcing humans to reimagine society as renewable and sustainable, the future of the planet could be vastly improved.
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