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  • Welcome to Top10Archive! Global warming has been in the news for years with experts debating

  • back and forth on what possibly could occur if nothing is done to curb its adverse effects.

  • Global warming isn't the consequence of one singular scenario, but the combination of

  • several detrimental events that all intertwine with one another. We'll start with the melting

  • polar regions and trickle down to the extermination of entire species here in our top ten global

  • warming outcomes. 10. Melting Glaciers in Polar Regions

  • After existing for a millennia, the northern section of the Larsen B ice shelf in Antarctica

  • collapsed between January and March of 2002, disintegrating at an alarming rate that stunned

  • scientists. It is estimated that melting is occurring at 9% per 10 years, which will only

  • get worse with rising temperatures. This isn't just occurring here though, as several colder

  • climates, such as Greenland or Glacier National Park, is also losing their ice regions. The

  • water melting starts out salt free, causing it to remain near the surface, which in turn,

  • is slowing the northern advance of warmer water from the North Atlantic Current, a sort

  • of ecological conveyor system. This leads to colder temperatures, higher sea levels,

  • more storms, ecological destruction, amongst other detrimental effects on our planet.

  • 9. Rising Sea Level Scientists have determined that the global

  • sea level has been rising since 1900 at approximately 0.04 to 0.1 inches or 1 to 2.5 millimeters

  • per year, with a more recent study claiming a rate of.14 inches or 3.5 millimeters since

  • the early 1990's. Although it doesn't sound like a considerable amount, it can have potentially

  • large impacts by putting thousands of coastal cities and whole islands at risk of being

  • swallowed by the ocean. Two methods contribute to the rise in sea levels: The melting of

  • the polar caps and glaciers and the expansion of seawater due to global temperature rise.

  • Predicting the amount that oceans will rise is difficult at best, with experts estimating

  • a rise of 2.5 to 6.5 feet or 0.8 to 2 meters by 2100, and more dire estimates of 23 feet

  • or 7 meters, enough to submerge London. 8. Methane Emission

  • Widespread thawing and melting of permafrost due to rising temperatures releases carbon,

  • with some of that carbon being released as methane. Methane is a potent greenhouse gas

  • that has many times the warming potential of carbon dioxide and other gases. There is

  • also an enormous amount of methane stored in ice called methane hydrate in sediments

  • on the ocean floor that can be released with higher temperatures. Hydrates form with almost

  • any gas and is defined as a compound in which water molecules are chemically bound to another

  • compound or element. Combine both these methods, plus emissions from humans and other sources,

  • it could lead to planetary disaster causing problems with rising sea levels, natural disasters,

  • as well as extinction of 20 to 50% of the world's animal species.

  • 7. Storm Activity With temperatures on the rise, scientists

  • expect an increase of 2 degrees Celsius or 3.6 Fahrenheit in ocean temperatures within

  • the next century. As a result, storms, hurricanes, and tropical storms will become more intense,

  • lasting longer, with stronger winds and causing more damage to coastal habitats and communities.

  • Hurricanes and tropical storms are both fueled and intensified depending on how rapidly water

  • can evaporate from the ocean. The evaporation transfers heat from the ocean to the atmosphere,

  • forming strong winds. A study posted in the journal Nature, found that hurricanes and

  • typhoons have grown in magnitude and are longer lasting over the past 30 years. These growths

  • correlate with the rise in sea temperatures. 6. Droughts and Heat Waves

  • Heat waves are generally defined as a period of several days to weeks of abnormally hot

  • weather. In the past 30 to 40 years, there has been an increased trend in high-humidity

  • heat waves due to the higher temperatures observed at night. Heat waves are responsible

  • for more deaths yearly than hurricanes, lightning, tornadoes, floods, and earthquakes combined.

  • Experts suggest that average temperatures will rise between 5 to 9 degrees Fahrenheit

  • or 3 to 5 Celsius over the next century. 5. Disease

  • Climate change will make it easier for more infectious diseases, or disease causing bacteria,

  • viruses and fungi to spread, with evidence that it could help them expand in range. With

  • increased temperatures and rainfall patterns changing, summers have become longer, allowing

  • disease carrying insects, like mosquitoes, to remain active longer and in areas they

  • weren't normally native to. Epidemics of Rift Valley fever, malaria, and yellow fever may

  • become more widespread with warmer climates; ecosystems like coral reefs are becoming bleached

  • and dying from pathogens that thrive in warm waters, germs that once staved off by colder

  • waters are infecting oysters and Monarch butterflies are being attacked by parasites that normally

  • wouldn't be able to survive in their habitat. In 2001, an outbreak of distemper, carried

  • by flies, killed many lions in Tanzania and has been linked to climate change.

  • 4. War and Conflict Severe drought, compounded by warming climate,

  • drove Syrian Farmers to abandon their crops and flock to cities, which helped in triggering

  • a civil war that has killed hundreds of thousands. This was stated in a study and published in

  • the Proceedings of National Academy of Sciences, along with the acknowledgement that many other

  • factors played a role in this conflict. Researchers argue that the conflict derived from economic

  • uncertainties resulting from temperature-related yield declines in areas heavily dependent

  • on agriculture. As climate change causes more resource depletion, it is highly likely to

  • cause conflict within those regions or be exploited by those who see it as an advantage

  • for power, territory, or wealth. You may think that this is an isolated part of the world,

  • but these symptoms could trickle down, and effect countries that were otherwise thought

  • to be safe. 3. Economic Consequences

  • Temperature rise due to climate change may radically damage the global economy and slow

  • growth in the following years by several different factors. Researchers found that temperature

  • change due to global warming will leave global GDP per capita 23% lower in 2100 than it would

  • be if there wasn't any warming. Some factors include, damage to property and infrastructure

  • caused by floods, rising sea levels, droughts, wildfires, and storms that will require repair,

  • or loss in productivity due to declines in ecosystems, increased sickness, bad weather

  • for tourism, and/or agriculture disruption. It would also strain humanitarian relief and

  • increase security threats when mass climate refugees are displaced from their homes.

  • 2. Loss of Biodiversity The link between climate change and biodiversity

  • has long been established, but as global temperatures rapidly rise, it becomes more of a threat

  • to the biodiversity of our planet affecting their ability to adapt quickly. As some ecosystems

  • are melting away, literally, animals are pushed to territory they aren't familiar with, causing

  • species that have adapted to the original environment to become strained. There is less

  • food due to animals dying from the increase of disease and from species migrating to more

  • hospitable locations, as seen in recent years in the Arctic and other regions. Less water

  • from droughts in other areas where it was originally abundant becomes another factor.

  • If flora and fauna can not adapt to the changes that are occurring, not only will some of

  • these habitats become scarce, but some may even become non-existent.

  • 1. Ecosystem Extinctions It is predicted by experts that one-fourth

  • of the Earth's species could be heading towards extinction by 2050 due to climate change.

  • It is already happening in the oceans with increased carbon dioxide retention causing

  • acidification or "bleaching" in the marine ecosystem, which has lead to the coral reefs

  • disappearing. Although coral reefs only make up 1% of the Earth's surface, they house a

  • staggering 25% of all marine life. A study conducted by Worldwide Fund for Nature, states

  • that coral reefs have declined by 50% in the last 30 years. In 1991, the death of the last

  • Golden Toad in Central America is marked as the first documented species extinction caused

  • by climate change. It is also estimated that due to the melting ice of the Arctic, that

  • polar bears may be gone in the next 100 years.

Welcome to Top10Archive! Global warming has been in the news for years with experts debating

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地球温暖化はもはや議論の対象ではないことを示すトップ10の兆候 (Top 10 Signs That GLOBAL WARMING Is NO LONGER A Debate)

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    songwen8778 に公開 2021 年 01 月 14 日
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