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Report warns carbon footprint of heavy emitter cement companies must be reduced sharply in order to meet Paris climate goals

Greenhouse gas emissions from cement production must be reduced sharply if the world is to meet the climate change goals set out in the Paris agreement, a new report has suggested.

Making cement and concrete, which is the most consumed product in the world after water, entails substantial emissions of carbon dioxide, from the chemical processes involved. While manufacturers have for years been seeking ways to reduce this or capture the carbon produced, and to make cement production more energy efficient, the results have failed to keep pace with the need to cut carbon emissions.

Bank of England governor says firms must acknowledge risks to avoid ‘catastrophic impact’

The governor of the Bank of England has warned of the “catastrophic impact” climate change could have for the financial system unless firms do more to disclose their vulnerabilities.

Telling banks and insurers they would need to provide more information about the risks they might face from climate change, Mark Carney said failure to do so would have damaging effects for financial stability.

Both the north pole and the south pole are situated in the middle of huge ice deserts which are melting around the edges under the influence of human activity. The difference that matters between them is that the ice of the Arctic floats: if it melted nothing much would happen to aggregate sea levels. The ice of Antarctica, like that of Greenland, rests on land. If it all were to melt, as it has done in the far distant past, sea levels could rise by as much as 60 metres. That is most unlikely to happen. What is possible, though, is that the smaller portion of the continent, west Antarctica, which is divided from the rest by a mountain range, could lose much of its ice. Even that would be catastrophic. A significant retreat in west Antarctica, as seems to be already under way, could raise sea levels by between one and three metres by the end of this century. Children now alive will see that happen across their lifetimes. That is what is meant by the urgency of global warming.

This week saw the publication of fresh research showing that the glaciers of west Antarctica are retreating faster than they were at the end of the last ice age, when water levels also rose significantly. The ice sheet is not one homogeneous mass, but a collection of glaciers all moving slowly but inexorably towards the sea. Their retreat is happening underwater, and invisibly, as the ocean erodes the foot of the glacier, known as the “ground line”, where its contact with the sea floor ends. Beyond that point, long tongues of ice stick out into the ocean, providing the coastline that we can see and map. But the capacity of the ice sheet to lock up water depends on the position of the ground line. As that retreats, invisibly, the sea level rises and the whole of the ice sheet grows less stable, something which makes further sea rise still more likely.

Now there’s a handbook for that

Gallup released its annual survey on American perceptions about global warming last week, and the results were a bit discouraging. While 85–90% of Democrats are worried about global warming, realize humans are causing it, and are aware that most scientists agree on this, independents and Republicans are a different story. Only 35% of Republicans and 62% of independents realize humans are causing global warming (down from 40% and 70% last year, respectively), a similar number are worried about it, and only 42% of Republicans and 65% of independents are aware of the scientific consensus – also significantly down from last year’s Gallup poll.

The Trump administration’s polarizing stance on climate change is probably the main contributor to this decline in conservative acceptance of climate change realities. A recent study found evidence that “Americans may have formed their attitudes [on climate change] by using party elite cues” delivered via the media. In particular, the study found that Fox News “is consistently more partisan than other [news] outlets” and has incorporated politicians into the majority of its climate segments.

People always ask me “how do you convince conservatives” or “how do you convince Trump voters” and I answer, “the question isn’t how to convince conservatives, it’s who should we be targeting - our audience is the large, undecided majority”