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SCIENCE

‘Humans have pushed the Earth into a new era’

With Nobel week in full swing and the sciences in the spotlight, The Local caught up with Irishman and Stockholm-based science writer Owen Gaffney whose work explains why humans' treatment of the planet has pushed us into a new era.

'Humans have pushed the Earth into a new era'

Owen Gaffney is an Irishman based in Stockholm who works with a group of scientists on the Anthropocene – a concept developed by Nobel Laureate Paul Crutzen in 2000.

“The Anthropocene concept is that humans have pushed the earth into a new epoch,” Owen Gaffney, director of communications at Stockholm’s International Geosphere-Biosphere Programme (IGBP) tells The Local.

The programme is tasked with co-coordinating research into the multitude of processes (biological, chemical and physical) that occur in the world we live in, and how these interact with us humans.

Gaffney explains that since the end of the last ice age, the world was in a time period known as the Holocene, a period which oversaw the growth of the human species. The industrial revolution and massive growth of the fifties marked a turning point in modern civilization and today humans find themselves in a position where their actions impact their environment more than any other time.

“Now, we are changing the nitrogen cycle, the acidity of the oceans, earth’s land masses. We use an area the size of South America to grow our crops and an area the size of Africa for our livestock,” Gaffney observes.

“It’s a new concept, the idea that we have pushed the earth so far that we are in a new geological epoch.”

Together with Canadian anthropologist Felix Pharand Deschenes, Gaffney has created a video using data visualisation that illustrates the spread of globalisation and the extent of human impact on our Earth (below).

Welcome to the Anthropocene from WelcomeAnthropocene on Vimeo.

The video has been viewed over 800,000 times since it was published in April last year.

“We released it last year and it opened the UN’s Rio+20 summit on sustainable development, setting the scene for world and environmental leaders that this is where humanity is, this is the state of the planet,” Gaffney says.

The video was furthermore picked up by international media and even tweeted by Bill Gates.

The video was also recently used by Sony Pictures in conjunction with Will Smith’s latest film After Earth to help educate why people need to be active in facing global change.

The video’s success underlies what the Anthropocene means culturally, Gaffney claims.

“The Anthropocene is a paradigm shift,” he says, likening it to the change in thought patterns when people realized the Earth revolves around the sun.

Such events forced society to re-evaluate their place in the universe, and have a cultural effect on people’s consciousness, he says.

“Simply, the Anthropocene shows that we have grown so large, so big, that we are the primary driver of change of Earth’s life support system,” he explains.

“This is very profound.”

Owen Gaffney notes that the idea that humans are causing huge change to the Earth’s biosphere is permeating beyond the scientific community and seeping into public consciousness. And it’s not just anthropologists and scientists that have been drawn to the concept.

“Artists have begun depicting images of the Anthropocene, thinking about what this means for societies,” he says. “I think this is why more and more artists, writers and musicians are being drawn to it, to explore it and try make sense of it.”

Gaffney’s own website – The Anthropocene Journal – is intended to help to bring these people together.

IN PICTURES: See artists impressions of the anthropocene

So what can we take from the Anthropocene, looking towards the issues that confront Earth in the future, particularly climate change and global warming?

“Firstly, the changes humans have made have benefited millions of people,” Gaffney notes.

“This must be the best time for anyone to be alive. But now humanity’s footprint is so huge we need to tread carefully so all nations can develop further. We are the first generation to really understand this responsibility.”

“Secondly, we have the technology to reduce greenhouse gas emissions and if we do manage to do that, we have a good chance of staying below the 2C target that policy makers have agreed to,” he adds.

However, the Irishman gave a stern warning that failing to take action is likely to result in devastating consequences.

“The warmer we get, the worse it will get,” he says.

New projects include an Anthropocene feature film in the form of a documentary in the works, as well as continuing to work with data visualization. But that’s not all for the science writer.

“I’m now creating a new data visualization to summarize the recent climate report that was finalized in Stockholm by the Intergovernmental Panel on Climate Change,” Gaffney tells The Local.

“It should be launched in a few weeks.”

Josh Liew

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SCIENCE

Nobel Prize in Chemistry awarded for ‘ingenious tool for building molecules’

The Royal Swedish Academy of Sciences in Stockholm, responsible for awarding the Nobel Physics and Chemistry Prizes, has announced the winners of the 2021 Nobel Prize in Chemistry.

Peter Somfai, Member of the Nobel Committee for Chemistry, announces the winners for the 2021 Nobel Prize in Chemistry.
Peter Somfai, Member of the Nobel Committee for Chemistry, announces the 2021 winners. Photo: Claudio Bresciani

The prize this year has been awarded to Germany’s Benjamin List and David MacMillan from Scotland, based in the US.

The Nobel Committee stated that the duo were awarded the prize “for their development of a precise new tool for molecular construction: organocatalysis”. The committee further explained that this tool “has had a great impact on pharmaceutical research, and has made chemistry greener”.

Their tool, which they developed independently of each other in 2000, can be used to control and accelerate chemical reactions, exerting a big impact on drugs research. Prior to their work, scientists believed there were only two types of catalysts — metals and enzymes.

The new technique, which relies on small organic molecules and which is called “asymmetric organocatalysis” is widely used in pharmaceuticals, allowing drug makers to streamline the production of medicines for depression and respiratory infections, among others. Organocatalysts allow several steps in a production process to be performed in an unbroken sequence, considerably reducing waste in chemical manufacturing, the Nobel committee at the Royal Swedish Academy of Sciences said.

The Nobel committee gave more information in a press release as to why List and MacMillan were chosen: “Organocatalysis has developed at an astounding speed since 2000. Benjamin List and David MacMillan remain leaders in the field, and have shown that organic catalysts can be used to drive multitudes of chemical reactions. Using these reactions, researchers can now more efficiently construct anything from new pharmaceuticals to molecules that can capture light in solar cells. In this way, organocatalysts are bringing the greatest benefit to humankind.”

List and MacMillan, both 53, will share the 10-million-kronor prize.

“I thought somebody was making a joke. I was sitting at breakfast with my wife,” List told reporters by telephone during a press conference after the prize was announced. In past years, he said his wife has joked that he should keep an eye on his phone for a call from Sweden. “But today we didn’t even make the joke,” List said. “It’s hard to describe what you feel in that moment, but it was a very special moment that I will never forget.”

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