Absence of 21st century warming on Antarctic Peninsula consistent with natural variability

by J. Turner et al., Nature/July 2016

Here we use a stacked temperature record to show an absence of regional warming since the late 1990s. The annual mean temperature has decreased at a statistically significant rate, with the most rapid cooling during the Austral summer. Temperatures have decreased as a consequence of a greater frequency of cold, east-to-southeasterly winds, resulting from more cyclonic conditions in the northern Weddell Sea associated with a strengthening mid-latitude jet.

See also : 20+ Scientists: ‘No Continent-Scale Warming Of Antarctic Temperature Is Evident In The Last Century’

U.S. crude oil exports went to more destinations in 2016

by US Energy Information Administration, March 28, 2017

In 2016, U.S. crude oil exports averaged 520,000 barrels per day (b/d), 55,000 b/d (12%) above the 2015 level, despite a year-over-year decline in domestic crude oil production. Even though oil exports have increased, growth in U.S. crude oil exports has slowed significantly from its pace from 2013 to 2015, when annual U.S. crude oil production grew rapidly.

Recent Sea-Level Change at Major Cities

by Rich Taylor, March 29, 2017

Where the ground is stable, typical change appears to be a rise of 1- to 2-mm/y. Rates above 3 mm/y seem to have a substantial component of natural and/or anthropogenic subsidence. Rates above 10 mm/y appear to be a primarily a consequence of human activity, which implies they should be manageable to some degree.

All records in this review are from the website www.psmsl.org of the Permanent Service for Mean Sea Level.

A seismic mapping milestone

by DOE/Oak Ridge National Laboratory, March 28, 2017

Team produces 3-D map of Earth’s interior

Using advanced modeling and simulation, seismic data generated by earthquakes, and one of the world’s fastest supercomputers, a team of scientists is creating a detailed 3-D picture of Earth’s interior. Currently, the team is focused on imaging the entire globe from the surface to the core-mantle boundary, a depth of 1,800 miles.

Oil & Gas Editorial: Largest UK Oil Discovery This Century May Be A Russian Mountain

by Timothy Haïdar, EIC, March 27, 2017

Hurricane’s prospects are located West of Shetland, an area that has promised much in terms of the 12 to 24 billion remaining barrels of oil equivalent (boe) said to be lurking on the UKCS. The GLA announcement represents a rare chink of light glistening in the murky waters of an industry at its lowest ebb since production began in the 1960s.

‘Australia’s Jurassic Park’ the world’s most diverse

by University of Queensland, March 27, 2007

An unprecedented 21 different types of dinosaur tracks have been identified on a 25-kilometer stretch of the Dampier Peninsula coastline dubbed ‘Australia’s Jurassic Park.’ A team of paleontologists has unveiled the most diverse assemblage of dinosaur tracks in the world in 127 to 140 million-year-old rocks in the remote Kimberley region of Western Australia.

Published measurements of climate sensitivity declining

by Laterite, June 20, 2015

The climate sensitivity due to CO2 is expressed as the temperature change in °C associated with a doubling of the concentration of carbon dioxide in Earth’s atmosphere. The equilibrium climate sensitivity (ECS) refers to the equilibrium change in global mean near-surface air temperature that would result from a sustained doubling of the atmospheric carbon dioxide concentration.  The transient climate response (TCR) is defined as the average temperature response over a twenty-year period centered at CO2 doubling in a transient simulation with CO2 increasing at 1% per year. The transient response is lower than the equilibrium sensitivity, due to the “inertia” of ocean heat uptake.

Also, this post

“[T]here is growing evidence of much smaller climate sensitivity to CO2; and even if these drastic emissions reductions occurred, we see little impact on the climate in the 21st century (even if you believe the climate models).”

The Anthropocene: Scientists respond to criticisms of a new geological epoch

by Anthony Watts, March 24, 2017

A team of academics led by the University of Leicester has responded to criticisms of the proposal to formalise a new geological epoch – the Anthropocene.

Geological critics of a formalised Anthropocene have alleged that the idea did not arise from geology; that there is simply not enough physical evidence for it as strata; that it is based more on the future than on the past; that it is more a part of human history than the immensely long history of the Earth; and that it is a political statement, rather than a scientific one.

Alberta’s Proposed Climate Plan: A Burden with No Benefit

by Ken Gregory, July 2005

Energy Balance Climate Sensitivity

The most important parameter in determining the economic impact of climate change is the sensitivity of the climate to greenhouse gas emissions. Climatologist Nicholas Lewis used an energy balance method to calculate the Equilibrium Climate Sensitivity (ECS) best estimate at 1.45 °C. ECS is the global temperature change resulting from a doubling of CO2 in the atmosphere after allowing the oceans to reach temperature equilibrium, which takes about 3000 years in the models.

A more policy-relevant parameter is the Transient Climate Response (TCR) which is the global temperature change at the time of the CO2 doubling. A doubling of CO2 at the current growth rate would take 126 years. The analysis gives the TCR best estimate at 1.21 °C with a likely range [17 – 83% confidence] of 1.05 to 1.45 °C.

Quelles énergies dans le monde pour 2050 ?

par Prof. Samuel Furfari, 23 Mars 2017

Expert européen auprès de la DG Énergie de la Commission européenne

Maître de conférences à l’Université Libre de Bruxelles

2050, c’est dans 33 ans. Il y a 33 ans, nous étions en 1984, en plein contre-choc pétrolier. Après le tremblement du monde suite aux deux chocs pétroliers consécutifs provoqués par l’OPEP, le prix du pétrole était tombé si bas qu’aujourd’hui encore, tout nouveau contre-choc pétrolier constitue un épouvantail pour l’Arabie saoudite. Qu’est-ce qui avait permis cette contre-révolution et mis en échec la stratégie de l’OPEP ? Tout d’abord, l’abandon de la consommation de produits pétroliers dans les centrales électriques (à l’époque, le prix du brut était si bas que l’on pouvait se permettre le luxe de l’utiliser pour produire de l’électricité). La maturation de la technologie nucléaire et le développement de technologies modernes de combustion de charbon ont changé la donne. Ensuite, la mise en œuvre de technologies plus efficientes, notamment dans le secteur de l’automobile, avait donné lieu à des économies d’énergie qui ont permis de réduire la consommation de pétrole. Cela se résumait à l’époque par un slogan lancé par la Commission européenne : COCONUC pour « COal, COnservation and NUClear ». Les résultats ont été au rendez-vous et ont suscité un retour à la sérénité énergétique.