Tag Archives: Dangerous climate change

Trouble at the top of the world

Arctic summer sea ice minimum was the sixth lowest on record. So we can all relax, right?

Wrong.

I’ll come back to that. However, Tamino at Open Mind points out that while the Arctic warms three to four times as fast as global warming, the Arctic winters are warming at a much faster rate.

Using the NASA data, which is about mid-range in the major players, Tamino finds that the overall average warming rate since 1985 in the Arctic, at 6.48°C/century is fully 3.4 times as fast as the global rate since 1985 of 1.90°C/century. Continue reading Trouble at the top of the world

Heat begins to bite

Mira Adler-Gillies at the ABC looks at How deadly is 50-degree heat? Australia’s cities face the new reality of climate change:

    Buckled train tracks, grounded planes, melting bitumen and massive blackouts: the dystopian vision of the 50-degree city is closer to reality every day.

    With wildfires raging around the Arctic Circle, unprecedented heatwaves in the Northern Hemisphere and record temperatures being set from Algeria to Canada, the world is getting inexorably hotter.

Continue reading Heat begins to bite

Coal power fading fast

Some time in the last few days I heard a person who should know better say that 1800 coal-fired power plants were being built around the world. One wonders where this (dis)information comes from. It went unchallenged by the ABC interviewer, showing once again that ABC journalists and presenters need an update on climate change – in the national interest.

As Adam Morton at The Guardian writes The world is going slow on coal, but misinformation is distorting the facts. Back in June, John “Wacka” Williams asked the Parliamentary Library how many coal plants there were, how many were being built, how many closed etc and could he have the information by 4pm?

The Library included the information that 621 units were being built, the point here being that power plants typically have multiple units. Hazelwood had eight.

Unfortunately, this information was wrong. Continue reading Coal power fading fast

NEG policy disaster won’t fly

On the weekend Energy Minister Josh Frydenberg gently reminded the Coalsheviks in the LNP Coalition that they should not be flirting with the idea of coal-fired power, because

    we have to factor in a “carbon-constrained future”.

He warns that they may be investing in what will become ‘stranded assets’ before they wear out.

Why doesn’t he tell them like it really is? Tell them to look out the window.

The heatwave in Europe this year has been assessed as ‘five times’ more likely because of climate change. The northern summer’s heat is being recognised as the strongest climate signal yet. Wildfires have raced through neighborhoods in the western United States, Greece and as far north as the Arctic Circle. Drought is threatening food supplies: Continue reading NEG policy disaster won’t fly

Hansen got it right

In 1988 James Hansen gave his famous testimony to the US Senate. For the short story, go to Tamino at Open Mind. For the longer story, Gavin Schmidt at RealClimate, plus the commentary thread is best.

Hansen told the politicians that our production of greenhouse gases, principally CO2, N2O, CH4 and CFC, were warming the climate. He said temperatures would go up in the coming years: Continue reading Hansen got it right

Antarctic ice loss rates have tripled since 2012

A new study has found that Antarctic ice loss and sea level rise rates have tripled since 2012.

This assessment involves 84 scientists from more than 40 institutions, and combines data from 24 satellite surveys. It follows in the footsteps of the first IMBIE (Ice Sheet Mass Balance Inter-comparison Exercise) conducted in 2012, and paints a particularly grim picture of the years between then and 2017. Continue reading Antarctic ice loss rates have tripled since 2012

Climate clippings 223

1. Climate as an existential threat

Last September I half-finished a post on this topic, with a paper by David Spratt and Ian Dunlop as the centre-piece. Their 28-page report on the state of climate science, action and politics entitled What lies beneath? The scientific understatement of climate risks is introduced as a post at Climate Code Red, but I suggest you go directly to the paper itself. Read any part of it, and I can promise you will be alarmed. Continue reading Climate clippings 223

Climate clippings 222

1. Warming could soon exceed 1.5°C

The UK Met Office has warned that temperatures could break through the 1.5°C threshold within five years.

    The 1.5C threshold was set at Paris as an ambitious target because scientists fear that a world warmer than that would be susceptible to ever wilder climactic events that in turn would precipitate greater drought, habitat loss, food insecurity and mass migration.

The UN Environment Program in its annual emissions gap report, published last October, said government commitments were only a third of what was needed. Continue reading Climate clippings 222

Oceans heading for mass extinction

    a 2015 study found there is no techno-fix to prevent a catastrophic collapse of ocean life for centuries if not millennia if we continue current CO2 emissions trends through 2050.

A study published in May 2017 tells us that oxygen is depleting in the oceans two or three times faster than expected.

From Think Progress:

    by combining oxygen loss with ever-worsening ocean warming and acidification, humans are re-creating the conditions that led to the worst-ever extinction, which killed over 90 percent of marine life 252 million years ago.

Continue reading Oceans heading for mass extinction

Sizzling summers presage a global future

Back in 2003 a heatwave centred in France killed over 70,000 people. Another which struck Moscow in 2010 killed 10,000. During the 2009 Black Saturday bushfires in Victoria 173 people tragically lost their lives from the fire. However, health authorities believe Victoria’s record-breaking heatwave may have contributed to the deaths of about another 374 people with the state’s death toll 62% higher than at same time in the previous year.

The elderly were worst affected, but the very young and those in frail health are also typically affected in events like this. Continue reading Sizzling summers presage a global future

Climate clippings 120

1. Australia’s vast kelp forests devastated by marine heatwave, study reveals

    A hundred kilometres of kelp forests off the western coast of Australia were wiped out by a marine heatwave between 2010 and 2013, a new study has revealed.

    About 90% of the forests that make up the north-western tip of the Great Southern Reef disappeared over the period, replaced by seaweed turfs, corals, and coral fish usually found in tropical and subtropical waters. Continue reading Climate clippings 120