How the Global Climate Fight Could Be Lost If Trump Is Re-Elected
By Oliver Milman
This story was originally published in The Guardian on July 27, 2020.
It was a balmy June day in 2017 when Donald Trump took to the lectern in the White House Rose Garden to announce the U.S. withdrawal from the Paris climate agreement, the only comprehensive global pact to tackle the spiraling crisis.
Todd Stern, who was the U.S.'s chief negotiator when the deal was sealed in Paris in 2015, forced himself to watch the speech.
"I found it sickening, it was mendacious from start to finish," said Stern. "I was furious … because here we have this really important thing and here's this joker who doesn't understand anything he's talking about. It was a fraud."
The terms of the accord mean no country can leave before November this year, so due to a quirk of timing, the U.S. will officially exit the Paris deal on 4 November – 100 days from now and just one day after the 2020 presidential election.
The completion of Stern's misery, and possibly any realistic hopes of averting disastrous climate change, rests heavily upon the outcome of the election, which will pit Trump against former vice-president Joe Biden, who has vowed to rejoin the climate agreement.
The lifetime of the Paris agreement, signed in a wave of optimism in 2015, has seen the five hottest years ever recorded on Earth, unprecedented wildfires torching towns from California to Australia, record heatwaves baking Europe and India and temperatures briefly bursting beyond 100F (38C) in the Arctic.
These sorts of impacts could be a mere appetizer, scientists warn, given they have been fueled by levels of global heating that are on track to triple, or worse, by the end of the century without drastic remedial action. The faltering global effort to curb greenhouse gas emissions and head off further calamity hinges, in significant part, on whether the U.S. decides to re-enter the fray.
"The choice of Biden or Trump in the White House is huge, not just for the U.S. but for the world generally to deal with climate change," said Stern. "If Biden wins, November 4 is a blip, like a bad dream is over. If Trump wins, he seals the deal. The U.S. becomes a non-player and the goals of Paris become very, very difficult. Without the U.S. in the long term, they certainly aren't realistic."
Nearly 200 countries put their name to the Paris accords, pledging to face down the climate emergency and limit the average global temperature rise to "well below" 2C above the era before mass industrialization started pumping huge volumes of planet-warming gases into the atmosphere from cars, trucks, power plants and farms. A more aspirational goal of halting temperatures at a 1.5C rise was also included although, just five years on, the planet is already creeping perilously close to this mark.
The Paris deal brought major, growing emitters like China and India on board with the quest to shift towards cleaner sources of energy, in part due to the urgings of Barack Obama, who claimed the agreement showed the U.S. was now a "global leader in the fight against climate change."
Trump, who once famously called climate science a "hoax," has never looked kindly on the deal, which he framed as an international effort to damage the U.S. while letting China off too lightly. In his Rose Garden speech, Trump remarked that he was elected to "represent the citizens of Pittsburgh, not Paris." In reality, each country is free to choose its own emissions cuts without any sort of enforcement. "Paris is like a vessel, such as a glass – you can pour water or wine into it," said Sue Biniaz, a former U.S. state department lawyer who drafted parts of the Paris deal. "It's not the design of Paris that's the problem, it's that there's not the political will to do enough."
Abandoned Climate Efforts
The U.S. government in practice abandoned any concern over the climate crisis some time ago, with the Trump administration so far rolling back more than 100 environmental protections, including an Obama-era plan to curb emissions from coal-fired power plants, limits on pollution emitted from cars and trucks and even energy efficiency standards for lightbulbs. In an often chaotic presidency, Trump's position on climate change has been unusually consistent – American fossil fuel production must be bolstered, restrictive climate regulations must be scrapped.
Unswayed by growing alarm among Americans over the climate crisis, Trump is taking this same message to the election. "Biden wants to massively re-regulate the energy economy, rejoin the Paris climate accord, which would kill our energy totally, you would have to close 25% of your businesses and kill oil and gas development," the president said this month, without citing evidence, as he announced another rollback, this time of environmental assessments of pipelines, highways and other infrastructure.
Despite all this, U.S. emissions have continued to fall, due in large part to the downfall of a coal industry that Trump has attempted to prop up. The international ramifications have been telling, however – in the absence of any sort of positive cajoling from the U.S., global emissions have remained stubbornly high and most countries are lagging behind their own promised actions.
According to the Climate Action Tracker, only Morocco is acting consistently with the Paris agreement's goals, with the global temperature rise set to exceed 3C by the end of the century even if the current pledges are met. Paris was meant to be only the beginning – countries are supposed to continually ratchet up their ambition levels until the more extreme ravages of climate change, such as dire flooding, heatwaves, crop failures and the loss of coral reefs, are avoided.
"There's been less political will from other countries to take action to a certain extent because the U.S. isn't pushing for it," said Biniaz. "During the first four years of Trump it's easier to say it's likely to be an aberration, a short-term deviation, but if it's eight years it's harder to keep together the coalition of countries that care about this."
‘Another Meteorite Is Coming’
Another four years of a Trump administration uninterested in the climate crisis could set back global emissions cuts by a decade, according to one published analysis, making the chances of meeting the goals of Paris near to impossible.
Hakon Saelen, an environmental economist at the University of Oslo who led the study, said the U.S. withdrawal is a "significant major blow" to the mitigation of the climate crisis. "The world cannot afford any delay if the 2C target is to be reached," he said. "Our model indicates that the chance of reaching it is very low already, but near zero with another Trump term."
But even with an engaged Biden administration that is somehow able to get Congress to agree to a $2tn plan to shift the U.S. on to renewable energy, the challenge is immense. The world has dithered on cutting emissions for so long that only an unprecedented, rapid overhaul of the way we travel, generate energy and eat will keep humanity within the bounds of safety outlined in Paris.The world will have to slash emissions by more than 7% a year this decade to have any hope of meeting the 1.5C target, according to the United Nations. This annual cut will be achievable this year only through the devastation of the coronavirus pandemic, which shuttered much of the global economy. A more sustainable path to decarbonization will need to be immediately identified and implemented.
"The warmer it gets the worse it gets and the [Paris] targets are broadly at a level where things will get really bad," said Zeke Hausfather, director of climate and energy at the Breakthrough Institute. "We don't want people to give up hope, the human race won't become extinct at 2C but that's an unnecessarily high bar. There are still large threats and a lot of good reasons to keep warming below that.
Stern said American voters will naturally be "supersonic focused" on coronavirus and the economic fallout. "But climate change can't be forgotten this election," he said. "The Covid crisis has shown us countries can do remarkable things in short order when they believe they have to. It shows us we need leaders who also understand what we need to do on climate change, because that is another meteorite heading our way."
This story originally appeared in The Guardian and is republished here as part of Covering Climate Now, a global journalism collaboration strengthening coverage of the climate story.
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The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.
"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."
The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.
They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.
They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.
But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.
"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.
What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.
It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.
To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.
First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.
Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.
University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.
"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."
Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.
"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.
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