Global warming effects many regions of the world, this summer has been unusual. The majority of the American West has been plagued by high temperatures and droughts.
Global Warming Effects
In the states of California, Oregon, and Washington, there were numerous fires that burned a large amount of land. In Siberia, there were also fires. Floods were caused by heavy rains in India’s western states. Central China was also hit by strong rainfall, which resulted in devastating floods. In Antarctica, the ice shield began to melt at a faster rate than projected. The latest report from a high-powered panel of scientists who have been keeping an eye on how global weather has been changing gave the rationale for these and other weather phenomena.
On August 9, 2021, the Intergovernmental Panel on Climate Change (IPCC) released its most recent report, documenting how human activity has impacted the global ecosystem at a “unprecedented pace.” The group gave a detailed account of the dire repercussions that will follow unless nations around the world reduce greenhouse gas emissions swiftly and drastically.
A number of historians were on the panel, and they looked back in time to see how climate change has impacted the Earth and the people who live on it. Since 1850, each of the previous four decades has been consistently warmer than the one before it. Since the fall of the Roman Empire, humanity has warmed the environment at an unprecedented rate.
According to the panel’s historians, we’ll have to go back 66 million years to discover a moment when the amount of carbon dioxide in the atmosphere changed as quickly and dramatically. Dinosaurs roamed the Earth during that period. The amount of carbon dioxide in the atmosphere has increased to levels not seen in the last 2 million years.
Global Warming Definition
Global warming is the long-term warming of Earth’s climate system that has been seen from the pre-industrial period (between 1850 and 1900) as a result of human activity, principally fossil fuel combustion, which increases heat-trapping greenhouse gas levels in the atmosphere.
Global warming effects ecosystems through temperature rises, water shortages, increased fire threats, drought, weed and pest invasions, intense storm damage and salt invasion, just to name a few.
If nothing is done, the situation will swiftly deteriorate. “The odds of unknown unknowns are becoming very large,” said Zeke Hausfather, the Breakthrough Institute’s director of climate and energy and a member of the United Nations Panel. “In the last 2 million years or so, we don’t have any great similar analogies. We can’t say with certainty what will happen to the Earth’s systems.” The evidence for humanity’s impact on the climate system, which was “previously a hotly disputed topic,” is now “overwhelming,” according to the report. What began as a scientific hypothesis has now been proven to be true. The phrase “virtually certain” appears almost a dozen times in the report’s 42-page “summary for policymakers.” The phrase “high confidence” is used over a hundred times. The rate of sea-level rise, ice sheet and glacier retreat, and ocean acidity are all regarded as “unprecedented in the past several thousand years.” Even the conviction with which the panelists presented their findings hasn’t convinced policymakers to take action. President Joe Biden’s efforts have failed to persuade the Republican opposition to adopt his climate program.
The same panel had warned thirty years ago that mankind was generating a dangerous greenhouse effect and that unless collective effort was taken to halt Earth’s warming, there may be “deep ramifications” for people and nature alike if collective action was not taken. 234 scientists composed the most recent report, which drew on 14,000 studies from throughout the world to arrive at their conclusions. The report was released less than three months before the upcoming climate summit in Scotland in November.
The report’s results were dubbed “code red for mankind” by the UN Secretary-General, who stated that governments must find solutions to minimize global warming as much as possible. The report takes issue with former President Trump’s and his political associates’ dismissal of global warming as a Chinese hoax created to stifle American economic prosperity. There is no scientific dispute that human activity is causing climate change, according to the report. That much is undeniable. The only lingering doubt was whether the world could have the courage to avoid darker times.
The UN panel gave its recommendations for action in four areas to assist policymakers. Heatwaves are becoming more often and more intense. Even if global warming is limited to 2.7 degrees Fahrenheit above preindustrial levels, projections predict that hot weather will become more intense in the twenty-first century. In a few years, towns like Jacobabad in Pakistan’s Sindh province will be uninhabitable.
Heavy downpours are being caused by rising temperatures. According to the report, high precipitation occurrences have increased over most geographical areas around the world since the 1950s. Experts anticipate that as the world warms, heavy precipitation events will become more intense, increasing by 7% for every 1.7 degrees Fahrenheit of warming.
Summer monsoons send the majority of the subcontinent’s annual rainfall to South Asia. These would increase heavier and last longer, resulting in devastating floods. Droughts will get drier on the other end of the weather spectrum. Drought is spreading across large swaths of the country, according to observations. Agricultural output has decreased in some African and Middle Eastern countries due to drier ground.
Hurricanes are also expected to be windier and rainier, according to scientists. In recent years, major hurricanes classified Category 3 or higher have wreaked havoc on the United States, the Caribbean, and Central America, destroying coastal property and displacing tens of thousands of people. In recent years, the tropical Atlantic has seen multiple Category 5 storms. Hurricanes with various names have become more regular and devastating throughout Asia.
What are the policy alternatives for South Asian countries as a result of the UN panel’s findings? Experts agree that human activity in the more industrialized portions of the world is to blame for much of the global warming. Poor and developing countries like Pakistan, on the other hand, are left to deal with a slew of consequences.
The most notable of them is the rapid melting of glaciers in the mountain ranges that feed the area’s rivers. The result would be devastating floods in rivers for decades, as happened in a stretch of land in India’s Himalayan area. The rapid runoff in the river demolished a tiny dam, killing numerous people. Such occurrences are anticipated to become more common in the future.
The Global Warming Solution
The World Bank published a paper a few years ago on the medium-term impact of glacier melting in the Himalayan region, where the Indus system of rovers gets its water. The study’s key finding was that rapid melting of glaciers would result in rapid runoffs, which would lead to serious water shortages in rivers later this century.
The Indus Cascades program was proposed by the Bank. This was supposed to be a set of 12 dams built on the Indus River. Rather than allowing the rapidly melting ice cover to produce water that would run into the sea, the storage would save it for later use. One dam in this initiative is the Chinese-built Dasu dam, which is now under construction.
The Imran Khan government’s tree-planting initiative will have an impact on the climate, as Pakistan has allowed deforestation to progress at a rate that will turn a large portion of the country into a desert. The key point of this research is that Pakistan has already experienced the predicament that the UN panel predicted would afflict much of the world.