El Niño Development Looking More Likely Now

By Anthony Watts – Re-Blogged From WUWT

ENSO-neutral conditions still reign as of the beginning of the month, but we’re starting to see some clearer signs of the development of El Niño.

Forecasters estimate that El Niño conditions will develop in the next few months, and there’s a 70-75% chance El Niño will be present through the winter.  Most computer models are currently predicting a weak El Niño event.

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Clouds and El Nino

By Willis Eschenbach – Re-Blogged From http://www.WattsUpWithThat.com

After the turn of the century, I became interested in climate science. But unlike almost everyone else, I wasn’t surprised by how much the global temperature was changing. As someone with experience with heat engines and engine governors, I know how hard it is to keep a heat engine stable under a changing load. As a result, I was surprised at how little the temperature was changing.

Over the 20th Century, for example, the temperature changed by a trivially small ±0.3°C. Since the average temperature of the planet is on the order of 287K, this means that the global temperature varied only about a tenth of one percent in a hundred years … that that is amazingly stable.

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Plateau in Ocean Air Temps

– Re-Blogged From Science Matters

Years ago, Dr. Roger Pielke Sr. explained why sea surface temperatures (SST) were the best indicator of heat content gained or lost from earth’s climate system.  Enthalpy is the thermodynamic term for total heat content in a system, and humidity differences in air parcels affect enthalpy.  Measuring water temperature directly avoids distorted impressions from air measurements.  In addition, ocean covers 71% of the planet surface and thus dominates surface temperature estimates.

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Will There Be A 2018/19 El Niño?

By Bob Tisdale – Re-Blogged From http://www.WattsUpWithThat.com

Looks like one may be forming right now.

Judith Curry published the post ENSO forecast for 2018 yesterday. On the thread (here) I asked and stated:

Judith, the question that needs answering: Are weather conditions right for a series of westerly wind bursts in the western tropical Pacific? Without westerly wind bursts to initiate downwelling Kelvin waves, there will be no El Niño.

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Cause and Timings of El Nino Events, 1850-Present

[See bottom for a description of an El Nino. -Bob]

By Burl C Henry

ABSTRACT:

An hypothesis is presented that the cause of an EL Nino event is the reduction in the amount of dimming Sulfur Dioxide (SO2) aerosol emissions into the troposphere.

For the modern era, 1850 – present, the SO2 removal episodes are coincident with either business recessions, or environmentally-driven reductions in net global SO2 aerosol emissions.

DISCUSSION:

One of the enduring questions regarding Earth’s climate has been what causes the onset of an El Nino event, because of their generally adverse impact upon the Earth’s weather. They are believed to have occurred for thousands of years, but up until now, the reason for their appearance has been the subject of much debate.

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Why Climate Models Run Hot

By Rud Istvan – Re-Blogged From http://www.WattsUpWithThat.com

EPA administrator Pruitt wants to “Red Team” the catastrophic anthropogenic global warming (CAGW) consensus best reflected in the IPCC assessment reports (AR). At its core, CAGW rests on just three propositions:

1. CO2 is a ‘greenhouse’ gas retarding radiative cooling. This should not be in serious dispute since Tyndall experimentally proved it in 1859.

2. The Earth is warming. Although the details are in dispute because of temperature data quality problems and ‘adjustments’, the general fact is not. The Earth has been intermittently warming since the Little Ice Age (LIA) ended. For example, the last Thames Ice Fair was in 1814.

3. CO2 and its knock-on effects caused the recent warming, and climate models (such as the CMIP5 archive for IPCC AR5) predict this will continue to catastrophic levels. This is an extremely dubious proposition.

This guest post addresses proposition 3. It does so in a short sound bite ‘abstract’ useful for debating warmunists, and then in a typical WUWT full climate science guest post. It is a modest Red Team contribution.

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