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Ocean warming dominates the increase in energy stored in the climate system, accountingIPCC AR5, WG1,Summaryfor Policymakers
for more than 90% of the energy accumulated between 1971 and 2010 (high confidence).
It is very likely that there is a substantial anthropogenic contribution to the global mean sea level rise since the 1970s. This is based on the high confidence in an anthropogenic influence on the two largest contributions to sea level rise, that is thermal expansion and glacier mass loss.IPCC AR5, WG1,Summaryfor Policymakers
Scripps Oceanography geochemist Ralph Keeling said fossil fuel use would have to decline by about 10 percent around the world and would need to be sustained for a year to show up clearly in carbon dioxide levels.
History has shown that carbon dioxide levels typically resume their climb quickly as normal economic activity rebounds. If there is any benefit of the coronavirus event in terms of slowing the pace of climate change, it could be the changing of people’s travel and work habits in ways that lead to sustained reductions in fossil fuel use. Only those kinds of long-term systemic reductions will change the trajectory of carbon dioxide levels in the atmosphere, Keeling said.
Our societies have reorganised themselves around the reality of pervasive personal transport.
outright reductions in travel demand (e.g., as a result of integrated transport, land-use and urban planning), figure much less prominently.
We can have cars to drive or a planet to live in.
.Builders like angular sand of the kind found on riverbeds. Sand, sand everywhere, nor any grain to use, to paraphrase Coleridge. A textbook example is the Burj Khalifa in Dubai, the world’s tallest skyscraper. Despite being surrounded by sand, it was constructed with concrete incorporating the “right kind of sand” from Australia.
"EIA has great data this morning:
1) 2017 carbon emissions down 0.9%;
2) 2017 emissions 14% below 2005 levels;
3) Total carbon emissions from gas higher than coal;
4) Petroleum top emitter, responsible for 46% of total emissions.”
https://mobile.twitter.com/johnrhanger/status/1037323456226967552
do you have numbers regarding the average carbon footprint of a motorist, and by EU countries (mainly UK, France, Germany, Spain, Italy)? and what is the car emission share within the overall carbon footprint of an average citizen?
the richest 10 per cent of households nationally consuming three times more carbon for household energy and travel than the poorest 10 per cent.
But Eric is wrong to say Antarctica’s ‘ice budget’ has tipped out of balance due to our burning of fossil fuels. Not only has it been out of balance before – such as the ancient West Antarctic collapse that causes concern – but the reason for the Amundsen Sea changes, where most ice is being lost, is that the ring of deep warm water around Antarctica has welled up onto the continental shelf and is melting the ice from underneath. We don’t know if human activities made this more likely.
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