The largest glacier in Greenland is even more vulnerable to sustained ice losses than previously thought, scientists have reported.
Jakobshavn glacier, responsible for feeding flotillas of icebergs into the Ilulissat icefjord — and possibly for unleashing the iceberg that sank the Titanic — is an enormous outlet for the larger Greenland ice sheet, which itself contains enough ice to raise seas by more than 20 feet.
Ever since 2012, scientists have been debating a complex and frankly explosive idea about how a warming planet will alter our weather — one that, if it’s correct, would have profound implications across the Northern Hemisphere and especially in its middle latitudes, where hundreds of millions of people live.
The Paris Agreement’s inclusion of “well below 2°C” and “pursue … 1.5°C” has catalysed fervent activity amongst many within the scientific community keen to understand what this more ambitious objective implies for mitigation. However, this activity has demonstrated little in the way of plurality of responses. Instead there remains an almost exclusive focus on how future ‘negative emissions technologies’ (NETs) may offer a beguiling and almost free “get out of jail card”.
Never before in the history of the human species has climate set so many spine-chilling new records as last year, 2016. That dire assessment comes via analysis of the World Meteorological Organization’s (“WMO”) annual report d/d March 21, 2017, prompting a thought: Does a wildly out of control climate threaten lifestyle and/or life as we know it?
The answer is a resounding yes it does! It’s just a matter of time.
Huge slabs of Arctic permafrost in northwest Canada are slumping and disintegrating, sending large amounts of carbon-rich mud and silt into streams and rivers. A new study that analyzed nearly a half-million square miles in northwest Canada found that this permafrost decay is affecting 52,000 square miles of that vast stretch of earth—an expanse the size of Alabama.
IN THE age of Trump, the person writing those words has much to teach us about the impending scientific struggles of our own time.
So spoke Salviati on day two of his debate with Sagredo and Simplicio in a hypothetical discussion imagined by the great scientist and astronomer Galileo Galilei, for his book Dialogue on the Two Chief World Systems, published in 1632.
In the Dialogue, Galileo puts forward his heretical view that the Earth and other planets revolve around the sun in opposition to the Catholic Church-sanctioned Ptolemaic system in which everything in the universe revolves around the Earth.
Galileo hoped that by adopting a conversational style for his argument, it would allow him to continue his argument about the true nature of the universe and evade the attentions of the Inquisition, which enforced Church doctrine with the force of bans, imprisonment and execution.
However, Galileo's friend, Pope Urban VIII, who had personally authorized Galileo to write the Dialogue, didn't allow sentimentality to obstruct power. Galileo was convicted of heresy and spent the rest of his days under house arrest--the Dialogue was banned by the Inquisition, along with any other book Galileo had written or might write.
Typically portrayed as the quintessential clash between religion and science, Galileo's conflict with the Papacy was, in fact, just as rooted in material considerations of political power as it was with ideas about the nature of the solar system and our place within it.
Amid parallels to today's conflict between Donald Trump and the scientific community over funding, research, unimpeded freedom of speech and the kind of international collaboration required for effective scientific endeavor, neither situation exists solely in the realm of ideas.
CRITICAL ECOLOGY PUBLICATIONS are finding a growing audience in the United States, as is evident in the success of Naomi Klein’s book This Changes Everything. Within this field there is also an increasing interest in ecosocialist thought, of Marxist inspiration, of which the two authors reviewed here are a part.
One of the active promoters of this trend is Monthly Review and its publishing house. It is this group that has published the compelling book, Facing the Anthropocene by Ian Angus, the Canadian ecosocialist and editor of the online review Climate and Capitalism.
His book has been lauded by the general public as well as by many within the scientific community, such as Jan Zalasiewicz and Will Steffen. Among the principal proponents of this outstanding work on the Anthropocene are Marxist researchers like Mike Davis and John Bellamy Foster, and ecologists on the left like Derek Wall of the Green Party of England.
From the work of such thinkers as chemist Paul Crutzen, who won the Nobel Prize for his research on the destruction of the ozone layer, geophysicist Will Steffen and many others, the conclusion that we have entered into a new geological era that is distinct from the Holocene (the era of the past 12,000 years) is beginning to be accepted.
The term “Anthropocene” is most often used to identify this new epoch, which is characterized by the profound impact of human activity on the earth-system. Most experts agree that the Anthropocene began in the mid-20th century, when a “Great Acceleration” of destructive changes were triggered. In fact, three-quarters of all CO2 emissions have been produced since the 1950s.
The term “Anthropos” does not mean that all humans are equally responsible for these drastic and disturbing changes — researchers have clearly shown the overwhelming responsibility of the world’s richest countries, the OECD countries, in shaping these events.
We also know the consequences of these transformations, notably climate change: most temperature rise, increasing extreme climate events, elevating ocean levels, the drowning of large coastal cities, etc. These changes are not gradual or linear and can be both abrupt and disastrous.
It seems to me, however, that this part of Facing the Anthropocene is less developed. Although Angus mentions these dangers, he does not discuss in a more detailed and concrete way the threats that weigh on the survival of life on the planet.
What are the established powers doing — especially the governments of the rich countries principally responsible for the crisis? Angus cites the fierce response of James Hansen, the North American NASA climatologist, to the 2015 United Nations Climate Change Conference in Paris, saying, “a fraud really, a fake…. It’s just bullshit.”
Indeed, even if all the countries present at the conference keep their promises, which is very unlikely considering that not a single sanction is expected to be fully met by the Paris agreements, we still will not be able to avoid an increase in the planet’s temperature past two degrees Celsius over pre-industrial levels.