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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…

Hurricane Florence and Climate Change

One of the important effects of climate change is what is happening to the jet stream.  The warming Arctic Sea has dramatically affected the jet stream.  It has been twisting its way south, and one of the results is cold winters and the American Northeast.  Another impact is on hurricanes.

The dip in the jet stream is bringing cold air to the Northeast, but it also is creating an issue for hurricanes.  More hurricanes are being sent into the East Coast that would ordinarily swing up into the North Atlantic. 

The problem is a blocking high forcing the hurricanes into the East Coast.

Back in 2016 Francis published a study on the link between blocking highs and global warming. At the time, she told ThinkProgress: “Our new study does indeed add to the growing pile of evidence that amplified Arctic warming and sea-ice loss favor the formation of blocking high pressure features in the North Atlantic. These blocks can cause all sorts of trouble…” Figuring out all of the causes is tricky, Fra…

What People Need To Do About Global Warming

There are a lot of things people need to do to reduce their carbon footprint, for example buying an electric powered car.  However, there is something more important than that:  We have to do something not directly connected to one's carbon footprint, we have to vote. 
One reason we are in the situation we're in right now is that
A ‘jaw-dropping’ 15 million super-environmentalists don’t vote in the midterms

The most important environmental effort you’ve probably never heard of — the Environmental Voter Project (EVP) — doesn’t talk about the environment much, if ever.
But that’s because talking about the environment isn’t the solution to perhaps the biggest solvable problem the environmental movement has: a lack of voters. There are 10 to 15 million so-called “super-environmentalists” who are registered to vote in this country, but generally don’t.

If they voted more consistently, it could change U.S. politics, as candidates from both parties would need to work to win their vote.…

Global Temperatures Still Looking Bad

I posted in 2011,
So far we have an increase in .8 degrees Celsius from 1880. Fitting a linear trend from the middle of 2009 to April 2015 the RSS data projects a decadal increase of .2726 degrees, and the UAH data .6347 degrees. Thus by 2035, the RSS data suggests 1.34 Celsius global temperature, and the UAH a 2.07 Celsius. Here I've re-analyzed the UAH data, updating to 2018. 

The Loess regression is more realistic than a linear regression.  Global warming deniers have pointed out the temperature "hiatus" in the 2000's and the Loess regression shows a leveling of the temperature over this years.  However, starting in 2009, the temperatures are rising again. 

The temperature spikes in 1998 and 2016 are El Nino events.  Consistent with global warming, the El Nino events are also increasing their effects.

The recent increase in temperatures is alarming.  In 2011 the analysis was showing an increase to 2.07 degrees Celsius by 2035.  The current Loess analysis suggest…

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Sinking Property Values As Sea Level Rises

I've broached the topic of sea levels many times.  This is because I believe the rising sea level is going to get the most attention as our biosphere warms. The first indication will be what happens to ocean front property values.  It will be like being in a pot of cool water being brought to a boil, it's hard to tell how bad it's getting.
By comparing properties that are virtually the same but for their exposure to the seas, researchers at the University of Colorado at Boulder and Pennsylvania State University found that vulnerable homes sold for 6.6 percent less than unexposed homes. The most vulnerable properties — those that stand to be flooded after seas rise by just one foot ­— were selling at a 14.7 percent discount, according to the study, which is set to be published in the Journal of Financial Economics.  The temperature is slowing increasing, and Charleston, South Carolina is starting to feel it.
Elizabeth Boineau’s 1939 Colonial sits a block and a half from the…

Arctic Sea Ice

I've posted about the Arctic sea ice numerous times, here, and here, for example.  One important reason I go back to that is because of the Paleocene/Eocene Thermal Maximum (PETM), at which time the planet, and the Arctic, underwent a similar experience to what we are now experiencing, at a time where greenhouse gases poured into the atmosphere and the oceans acidified producing the largest loss of sea life in our planet's history.  We are pouring greenhouse gases into the atmosphere at a rate that is ten times what happened at the PETM.  An indication of what is going on is the break up of part of the Arctic sea ice that wasn't expected to do so this soon.

The Arctic sea ice now appears to be at a tipping point. The oldest and thickest sea ice in the Arctic has started to break up, opening waters north of Greenland that are normally frozen, even in summer.  This phenomenon – which has never been recorded before – has occurred twice this year due to warm winds and a climate…

Hothouse Earth

I've posted before about feedback, global warming causing feedbacks that make it worse.  Also if the feedback causes global temperatures to exceed 2 degrees Celsius, that it would be catastrophic.  Some researchers now have research to support that.

Researchers believe we could soon cross a threshold leading to boiling hot temperatures and towering seas in the centuries to come.  Even if countries succeed in meeting their CO2 targets, we could still lurch on to this "irreversible pathway".

Their study shows it could happen if global temperatures rise by 2C.
"We are the ones in control right now, but once we go past 2 degrees, we see that the Earth system tips over from being a friend to a foe. We totally hand over our fate to an Earth system that starts rolling out of equilibrium."
Each year the Earth's forests, oceans and land soak up about 4.5 billion tonnes of carbon that would otherwise end up in our atmosphere adding to temperatures.   But as the world…