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Current Global Warming Basics

Here is a summary of the basic impacts of global warming on our biosphere.  I present here the quick view.  More discussion at that site.

Atmospheric Temperatures

Here’s the global average temperature each month from January 1880 through January 2016, according to data from NASA:

The red dot marks the most recent value, January 2016. It’s the hottest yet.
Here is the secular trend:

I have discussed measuring the trend from 1998 to present here and here.  There can be no question atmospheric temperatures and rising.

NASA isn’t the only organization that tracks global temperature. There’s also the National Climate Data Center, the Hadley Centre/Climate Research Unit in the U.K., a modified form from the Univ. of York in the U.K., independent data from a team organized by researchers from Berkeley Univ. in California, and the Japan Meteorological Agency, just to name the best-known. It would be redundant to show you data from all these organizations, because they all tell the same story: l…

Antarctica is Melting at an Accelerating Rate

Antarctica Is Melting Three Times As Fast As A Decade Ago 
Between 60 and 90 percent of the world’s fresh water is frozen in the ice sheets of Antarctica, a continent roughly the size of the United States and Mexico combined. If all that ice melted, it would be enough to raise the world’s sea levels by roughly 200 feet.
While that won’t happen overnight, Antarctica is indeed melting, and a study publishedWednesday in the journal Nature shows that the melting is speeding up. -500 -1,000 -1,500 -2,000 -2,500 -3,000 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014

People Denying Global Warming Will In Time Be Held Accountable

Climate Change Denial Should Be A Crime

In the wake of Harvey, it's time to treat science denial as gross negligence--and hold those who do the denying accountable. In August 2016, months after Houston had been hit by the second of two back-to-back “hundred year floods,” Mike Talbott, then the head of Houston’s flood control district, told The Texas Tribune and ProPublica that he still had no plans to study climate change or its potential impacts on the county — Harris, the third-largest in the nation — that he was charged with protecting. Talbott criticized scientists for being “anti-development,” and not only ignored but denigrated studies — even those conducted by his own department, one of which he called “absurd” — that suggested development was worsening flooding, or that urged him to leave prairies intact to absorb floodwaters. When the Tribune told Talbott that a host of scientific experts had said the contrary, his reply was blunt.  “You need to find some better experts,”…


I've been posting for four years about global warming, about the risks, the consequences, about what we should expect to happen.  But there is one thing, in my opinion, more important than all other issues, refugees. 

People fleeing droughts, famine, social disorder is only going to get worse as global warming advances.  I urge everyone to support UNHCR.  In my opinion there is no more important issue.  I urge everyone to look more closely into this.  Imagine your having to flee from very difficult circumstances into countries that are resisting your migration.  There are millions of families in very desperate situations and UNHCR is in many cases the only help they have.

People Skeptical Of Global Warming Please Read This

What I learned, and why you should drop your objections about global warming

Since we are not climate scientists, I argued, we don’t have the expert knowledge necessary to evaluate which side of the debate is right. Therefore, we should defer to the majority for the purpose of choosing public policy.  This argument didn’t seem to change any minds. One man even argued it was completely irrelevant. “Science isn’t a democracy!” he said. Well, he’s right! It’s not a democracy at all! That’s why your opinion on the cause of global warming doesn’t matter. I’m not saying that contrarian climatologists are wrong because they are in the minority — I’m saying you need staggering arrogance to insist that over 90% of climatologists are wrong when you aren’t even a scientist, let alone a climatologist.
As I read more on the topic, I learned that the vast majority of climatologists agree: greenhouse gases are the main cause of global warming, not changes in the sun. It’s scary that I could be misled…

Carbon Dioxide Not So Good For Agriculture

Plants consume carbon dioxide and intuitively we feel that it's concentration in the atmosphere should have a positive effect on them.  However, research now shows that rice grown in higher levels of carbon dioxide has lower amounts of several important nutrients.

When scientists want to figure out how climate change might disrupt the world’s food supplies, they often explore how rising temperatures could shift growing seasons or how more frequent droughts could damage harvests. In recent years, though, researchers have begun to realize that the extra carbon dioxide that humanity is pumping into the atmosphere isn’t just warming the planet, it’s also making some of our most important crops less nritious by changing their chemical makeup and diluting vitamins and minerals.  Now, a new study has found that rice exposed to elevated levels of carbon dioxide contains lower amounts of several important nutrients.

The potential health consequences are large, given that there are already b…

Global Warming Descends On Alaska

I've posted many times about the dangers Florida, New Orleans, and Houston have to look forward to because of climate change.  Despite being in conservative states they have been forced to confront the issue, Floridaespecially as I'veposted.  Another Republican State is being forced to confront climate change, Alaska.  They are between a rock and a hard place.  While the impact of climate change in Alaska is making itself felt,

Alaska is already seeing the dramatic effects of global warming firsthand, making the issue difficult for local politicians to avoid. The solid permafrost that sits beneath many roads, buildings and pipelines is starting to thaw, destabilizing the infrastructure above. At least 31 coastal towns and cities may need to relocate, at a cost of hundreds of millions of dollars, as protective sea ice vanishes and fierce waves erode Alaska’s shores. “The change has been so real and so widespread that it’s become impossible to ignore,” Byron Mallott, the state’s…

Things We Don't Understand About Climate Change

Three Things We Don’t Understand About Climate Change

by Aarne Granlund
I argue that most of us do not grasp how immediate this situation has become, how fast it is progressing and what the scale of change needed is to reach the stabilisation targets of the Paris Agreement. I also argue that after individuals, nations and corporations understand the urgency and the rate, they should be honest about the scale of action needed in order to avoid collapse of the biosphere and thus civilisation.

1. Urgency  The first misunderstanding about climate change is related to how we perceive its impacts in time. It is not (only) a future issue, not a polar bear issue and certainly not an issue which only affects a few remote parts of the world. [....]

2. Rate and Scale of Change  The Arctic, area located on the top of the planet from 66°N north, is a prime example of systematic exponential change. It is warming at least twice as fast as the rest of the planet. There is less inertia in the Arctic tha…