Climate Change and Photography
By Andy May
Links to the other posts in this series:
Part 3: The Northern Hemisphere and the Arctic
In previous posts (here, here and here), we have shown reconstructions for the Antarctic, Southern Hemisphere mid-latitudes, the tropics, the Northern Hemisphere mid-latitudes, and the Arctic. Here we combine them into a simple global temperature reconstruction.
Continue reading “A Holocene Temperature Reconstruction Part 4: The global reconstruction”By Andy May
Links to the other posts in this series:
Part 4: The Global Reconstruction
In the last post (see here) we reexamined the Marcott, et al. (2013) proxies for the Southern Hemisphere mid-latitudes and the tropics. In this post, we will present two more reconstructions using their proxies, these are for the Northern Hemisphere mid-latitudes (30°N to 60°N) and for the Arctic region (60°N to 90°N).
Continue reading “A Holocene Temperature Reconstruction Part 3: The NH and Arctic”By Andy May
Links to the other posts in this series:
Part 3: The Northern Hemisphere and the Arctic
Part 4: The Global Reconstruction
In the last post (see here) we introduced a new Holocene temperature reconstruction for Antarctica using some of the Marcott, et al. (2013) proxies. In this post, we will present two more reconstructions, one for the Southern Hemisphere mid-latitudes (60°S to 30°S) and another for the tropics (30°S to 30°N).
Continue reading “A Holocene Temperature Reconstruction Part 2: More reconstructions”There is an exciting new post on notrickszone.com here, that discusses a new paper on thermodynamics and the greenhouse effect. In addition to Gerlich and Tscheuschner and the new paper Hertzberg, et al. (2017), the recent paper Kramm and Dlugi (2011) is interesting.
Yes, indeed, all objects radiate energy if their temperature is above absolute zero. No question about it. But, if you place an object that is radiating at 101 degrees C next to an object radiating at 100 degrees C, they will both soon be radiating at 101 degrees C, not 201 degrees C. A cooler object cannot warm a warmer object, it does not happen, sorry. The second law of thermodynamics does apply.Continue reading “Thermodynamics and the greenhouse effect”
By Andy May
Links to the other posts in this series:
Part 3: The Northern Hemisphere and the Arctic
Part 4: The Global Reconstruction
The only recent attempt at a global Holocene temperature reconstruction available today is the one by Marcott, et al. (2013), the paper abstract can be viewed here. His reconstruction is shown in figure 1.
Figure 1
The Y axis is a reconstructed global temperature anomaly from the 1961-1990 mean. “Years BP” are years before 1950. This reconstruction shows a fairly flat Holocene Climatic Optimum (or HCO, also called the Holocene Thermal Optimum, see description here) temperature anomaly of +0.4°C from 9500 BP to 5000 BP, declining to a low of -0.4°C about 300 BP (1650 AD) in the Little Ice Age (LIA). This 0.8°C difference between the HCO and the LIA is smaller than the generally accepted difference of 1°C to 1.5°C.
Continue reading “A Holocene Temperature Reconstruction Part 1: the Antarctic”By Andy May
On Bret Stephens facebook page, I complimented Mr. Stephens on what I thought was a very good column. I also noted that the eminent climate scientist Dr. Richard Lindzen had said similar things. To this a George Smith replied, in part, as follows:
“Few “skeptics” have been debunked as much as Lindzen and Spencer.”
Link to comment here.
If you follow the link you will see it is followed with a google search for “Lindzen debunked.” No support, no data, no peer reviewed references, just anything that says “Lindzen debunked.” This is “internet slime” at its worst. We see a lot of this sort of reprehensible behavior around climate science, often by people who have no scientific background at all. But, I am a scientist with 42 years’ experience and have been studying and writing about climate science for years, so I do want to address some of the scurrilous attacks found in this google search.Continue reading “Lindzen, Soon and Spencer debunked?”
My lovely wife Aurelia and I just returned from a wonderful charter of the Miss Kitty in the British Virgin Islands. I took my DJI Phantom 3 drone and shot video at several stops, both from the yacht and from shore. The videos can be seen here. While snorkeling in the islands Captain Pat Little caught these great shots of a spotted eagle ray.
Spotted Eagle Ray
Spotted Eagle Ray and shark sucker
In addition to the drone videos in the link above, here is a link to a video, taken by Captain Pat Little, of the eagle ray in the pictures above. Click here.
By Andy May
This was my first climate change conference and I had a great time. So, here is a quick note sharing my most memorable take-aways from the conference. Continue reading “Take-aways from the Washington, D.C. Heartland Climate Change Conference”
By Andy May
“You may all go to hell and I will go to Texas” Davy Crockett, 1835
According to the Texas Tribune in 2016, Texas has become the top destination for people moving from other states and leading the way are people from California. Beginning in 2005, Texas has outpaced all other states in population growth. Half of the growth is due to people moving to Texas.Continue reading “Moving to Texas”
By Andy May
Key question: Can renewables ever replace fossil fuels and nuclear?
Understanding the value of renewables, vis-à-vis fossil fuels and nuclear power, requires that we consider that all energy is not equal in value. In fact, the quantity we call energy can be misleading and many experts prefer the quantity called “exergy,” which is defined in economics as (source Exergy Economics):
Continue reading “Exergy and Power Plants”“The maximum useful work which can be extracted from a system as it reversibly comes into equilibrium with its environment.”
