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better to know...?, climate-debate

U.S. Starts withdrawal from Paris Climate Accord.

by A. Watts, November 4, 2019 in WUWT

President Trump is fulfilling his most important de-regulatory promise.  This is a great day for America, and 4th November 2020 when U. S. withdrawal becomes final will be an even greater day. 

On the U.S. Withdrawal from the Paris Agreement

Press Statement by Michael R. Pompeo, Secretary of State

November 4, 2019

Today the United States began the process to withdraw from the Paris Agreement.  Per the terms of the Agreement, the United States submitted formal notification of its withdrawal to the United Nations.  The withdrawal will take effect one year from delivery of the notification.

As noted in his June 1, 2017 remarks, President Trump made the decision to withdraw from the Paris Agreement because of the unfair economic burden imposed on American workers, businesses, and taxpayers by U.S. pledges made under the Agreement.  The United States has reduced all types of emissions, even as we grow our economy and ensure our citizens’ access to affordable energy.  Our results speak for themselves:  U.S. emissions of criteria air pollutants that impact human health and the environment declined by 74% between 1970 and 2018.  U.S. net greenhouse gas emissions dropped 13% from 2005-2017, even as our economy grew over 19 percent.

The U.S. approach incorporates the reality of the global energy mix and uses all energy sources and technologies cleanly and efficiently, including fossils fuels, nuclear energy, and renewable energy.  In international climate discussions, we will continue to offer a realistic and pragmatic model – backed by a record of real world results – showing innovation and open markets lead to greater prosperity, fewer emissions, and more secure sources of energy.  We will continue to work with our global partners to enhance resilience to the impacts of climate change and prepare for and respond to natural disasters.  Just as we have in the past, the United States will continue to research, innovate, and grow our economy while reducing emissions and extending a helping hand to our friends and partners around the globe.

climate-debate, to keep an eye on...

Oscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale

by Zharkova V. V. et al., June  24, 2019 in Nature OPEN ACCESS

Abstract

Recently discovered long-term oscillations of the solar background magnetic field associated with double dynamo waves generated in inner and outer layers of the Sun indicate that the solar activity is heading in the next three decades (2019–2055) to a Modern grand minimum similar to Maunder one. On the other hand, a reconstruction of solar total irradiance suggests that since the Maunder minimum there is an increase in the cycle-averaged total solar irradiance (TSI) by a value of about 1–1.5 Wm−2 closely correlated with an increase of the baseline (average) terrestrial temperature. In order to understand these two opposite trends, we calculated the double dynamo summary curve of magnetic field variations backward one hundred thousand years allowing us to confirm strong oscillations of solar activity in regular (11 year) and recently reported grand (350–400 year) solar cycles caused by actions of the double solar dynamo. In addition, oscillations of the baseline (zero-line) of magnetic field with a period of 1950 ± 95 years (a super-grand cycle) are discovered by applying a running averaging filter to suppress large-scale oscillations of 11 year cycles. Latest minimum of the baseline oscillations is found to coincide with the grand solar minimum (the Maunder minimum) occurred before the current super-grand cycle start. Since then the baseline magnitude became slowly increasing towards its maximum at 2600 to be followed by its decrease and minimum at ~3700. These oscillations of the baseline solar magnetic field are found associated with a long-term solar inertial motion about the barycenter of the solar system and closely linked to an increase of solar irradiance and terrestrial temperature in the past two centuries. This trend is anticipated to continue in the next six centuries that can lead to a further natural increase of the terrestrial temperature by more than 2.5 °C by 2600.

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