Climate disruption in overdrive (2)
The article you are about to hear and read has been penned by journalist Dahr Jamail. The following is the second part of this article:
The anthropogenic climate disruption (ACD) has caused the onslaught of rising sea levels, melting permafrost and other impacts that have positioned residents of the Arctic in a losing battle to stay in their homes. Housing shortages are now the norm as land is washing and melting away into the rising seas. Meanwhile, across the lower latitudes, recent satellite images show that tropical rain forests ranging from the Amazon to the Philippines are vanishing far more abruptly than was previously believed, according to recent research. As usual, ACD, drought, wildfires and deforestation are to blame. In Africa, at least 36 million people are facing hunger due to record-high temperatures and drought, which have had a catastrophic impact on crops across the eastern and southern regions of that continent. Meanwhile in the Arctic, February saw alarming melting of Arctic sea ice, where record-high temperatures brought with them other records -- including record lows for that month's extent and area of Arctic sea ice.
Until this year, the previous records for sea ice extent and area for February were set in 2011. Moreover, the total volume of the Arctic sea ice, which many scientists see as the most important factor determining the health of Arctic sea ice, reached its second-lowest level ever recorded that same month. The record low for sea ice volume was set in 2012, a record that could fall this year or next, according to scientists. Global rainfall extremes continue to be elevated by ACD. A new study published in Nature Climate Change basically warns us to get ready for rain, and lots of it. The study shows that ACD is already driving increases in rainfall and snowfall extremes around the world, even in arid regions. This trend, according to the study, will continue, and likely amplify further.
In the oceans, things continue to look grim. Recent research shows that coral growth is already being weakened by increasingly acidifying oceans. One-quarter of the carbon dioxide released as a result of human activities is absorbed into the world's oceans, where it alters their chemistry and reduces coral growth.
Meanwhile, a severe coral bleaching event in the most pristine portions of the Great Barrier Reef in Australia has caused authorities there to raise an alarm over severe local coral bleaching, caused by warm ocean temperatures. Another study shows how ACD is pushing fish toward both poles, which means that traditionally poorer countries near the equator have even less access to one of their primary food sources. The fish migrations are due to global temperature increases in the oceans. In the meantime, sea levels continue to rise ahead of worst-case predictions. A study recently published in Nature Climate Change warns that in the continental United States alone, millions of people are already at risk of being forced out of their homes because of sea-level rise. The study shows that sea-level increases will cause the homes of 4 million Americans to be inundated during high tides with three feet of sea-level rise by 2100, although the pace of sea-level rise is consistently ahead of that projection. "Once you take into account growth of population, the numbers end up being two to three times more in terms of overall population that's going to be impacted than if you just look at current populations," said Stetson University landscape ecologist Jason Evans, who contributed to the study. "Florida really pops out." With six feet of sea-level rise, which many scientists believe is inevitable, more than 4 million people, in Florida alone, will lose their homes.
In the Southern Hemisphere, ACD-fueled wildfires continue to burn apace.
In Tasmania, bushfires have grown so severe that 1,000-year-old trees are burning to ash while dried-out peat bogs are on fire. It's also worth noting that in the United States, wildfire season is already underway with one massive wildfire having already burnt more than 72,000 acres across Oklahoma and Kansas.
Furthermore, atmospheric carbon dioxide levels have reached new heights, signaling an alarming increase. February 2015 to February 2016 saw the highest year-to-year growth ever recorded. Pieter Tans, lead scientist of the National Oceanic and Atmospheric Administration's Global Greenhouse Gas Reference Network, said the new record accompanied four straight years of increases of over 2 parts per million in the atmosphere. Of this, Trans said, "We've never seen that. That's unprecedented." Temperatures across the globe continue to escalate.
Melbourne, Australia, saw its hottest March night ever recorded, breaking the previous record by more than 1 degree Celsius. The previous record was set only three years prior. Moving northward, the rapidly increasing temperatures in the Arctic prompted climate scientist Dr. Peter Gleick, president of the Pacific Institute in California, to warn that this accelerated increase could have a "catastrophic" effect on the planet's climate. He explained that the higher temperatures are driving the creation of dangerous storms across the Northern Hemisphere, and that since early February, the area of the Arctic covered by sea ice has been lower this year than any of the last 30 years.
In parts of the Arctic, February shattered all previous temperature records as the entire month reached a staggering 18 degrees Fahrenheit above normal in some regions. Fort Yukon, Alaska, a place that has recorded the lowest temperature on record in that state, is experiencing record warm temperatures, causing people there to say that the warming trends "have robbed the Arctic of its winter."
To make matters worse, methane, a greenhouse gas 100 times more potent than carbon dioxide on a 20-year time scale, spiked in February to more than 3,000 parts per billion in the atmosphere. This was the largest spike of methane ever recorded.
A recent report by the Center for American Progress Action Fund shows that more than six out of every 10 Americans are represented by someone in Congress who denies the reality of ACD. According to the report, 59 percent of the Republican House caucus and an amazing 70 percent of the Republicans in the Senate deny ACD is real. The report also reveals that, according to the US Census, 202,803,591 Americans are represented by an ACD denier. Florida, a state notorious for having a government led by ACD deniers, faces yet another reality check from ACD. Fort Lauderdale, which is a boomtown of growth and construction, and also expects its population to grow by one-third in the next 15 years, is hurtling headfirst toward the reality of ACD. Sea-level rise will eventually cause the city to be abandoned to the ocean. Another blow for deniers came in the form of recent polling data, which shows a record number of Americans now see ACD as a threat. According to Gallup polling, 41 percent of US adults believe ACD poses a "serious threat" to them during their lifetimes -- a 4 percent increase over 2015, and the highest level ever recorded by Gallup. Gallup data also shows that 64 percent of those polled worried about ACD "a great deal" or at least "a fair amount," which is the highest level recorded since 2008. Meanwhile, only 36 percent of Americans said they did not worry about it, or only worried about it a little. Additionally, 65 percent of Americans now believe ACD is due to greenhouse gases released by human activity, a 10 percent increase on this topic over last year.
Another reality check came from Dr. James Hansen, who declared recently, "We have a global emergency" due to ACD. Hansen noted that ACD is poised to render large parts of the world essentially uninhabitable by 2100 due to extremely hot temperatures. Recent data from the National Oceanic and Atmospheric Administration revealed that the planet saw an "explosive" amount of annual carbon dioxide growth in the atmosphere during 2015, as the amount of carbon dioxide saw its largest single annual increase since record-keeping began.
A recent study by the University of Queensland gave yet another sobering warning, stating that global temperatures could rise much faster than expected, possibly even breaching the 2 degree Celsius mark much sooner than predicted thus missing the politically agreed-upon goal of keeping warming below 2 degrees Celsius.
AJ/MG