Insight and inspiration in turbulent times.
In late 2015, the world agreed to limit the global temperature rise to “well below 2C”. Ever since the signing of the Paris Agreement on climate change, scientists, think tanks and policymakers have been scrambling to define exactly what meeting this temperature limit will mean in policy and investment terms.
Despite a major downturn in drilling activity, levels of methane, one of the world’s most potent greenhouse gases, have been steadily increasing over Pennsylvania’s unconventional shale gas reserves.
The future UK electricity mix will have more renewables, batteries and interconnectors than expected, according to long-awaited new government projections. The shift in Department for Business, Energy and Industrial Strategy (BEIS) modelling, which includes a marked reduction in new gas capacity, parallels similar changes made by National Grid.
Hypocausts were heating systems that distributed the heat from an underground fire throughout a space beneath the floor. The heat was absorbed by the floor and then radiated into the room above. The effect on thermal comfort must have been similar to that of a modern-day hot water or electricity-based radiant floor heating system.
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.
If we trim energy use in the manner I’ve described above, we can reduce per capita energy use in the Peasant’s Republic of Wessex by a little more than half its present value – down to around 1.3 kW per capita.
The impacts of non-CO2 aircraft emissions at high altitudes came to prominence back in 1999 following publication of a special report by the International Panel on Climate Change (IPCC) on aviation. This estimated the total historic impact of aviation on the climate to have been two to four times higher than for CO2 emissions alone.
A lively debate is ongoing on what should be the minimum energy return for energy invested (EROEI) in order to sustain a civilization. Clearly, one always wants the best returns for one’s investments.
In 2011, while working toward a Ph.D. in American Studies at the University of Minnesota, Matthew Schneider-Mayerson began a study into the peak oil community. His book Peak Oil: Apocalyptic Environmentalism and Libertarian Political Culture is the result of this research.
Why are the Saudis content to allow oil prices to remain this low and possibly drift lower? I believe it’s because their war on shale never ended; they mean to destroy the long-term financial viability of oil from shale deposits–and that job won’t be finished until investors say, “Never again!”
“Microgrids, not large-scale power generation, will be the most effective way to provide electricity to those still unconnected,” Wilder says. Microgrids are essentially small power grids customized for single communities.
Carbon Brief analysis shows the UK’s CO2 emissions fell by 5.8% in 2016, after a record 52% drop in coal use. The reduction would leave UK CO2 emissions some 36% below 1990 levels. The huge fall in CO2 from coal use in 2016 was partially offset by increased emissions from oil (up 1.6%) and gas (up 12.5%).
