bare feet in the sand

the beauty of nature in a consumer economy


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Energy Efficient Homes

One of the things I want to do with my blog is help the average person (if there is such a thing) know how to be more eco-friendly and energy efficient.  Not everyone wants to go out of their way, but there are still small things we can do.  There are also bigger things we can do, especially if we own a home.  I do not – I’m a renter with no control over the fact that my windows don’t always shut properly.  My parents do own a home.  They have recently decided to make some changes and I think they are worth sharing.

The first thing they did was put solar panels on their roof.  It was something they had thought about because of the established technology that gives clean, efficient energy.  However, they had found out that it cost $40,000 to put them on.  A friend of theirs got some help and put them on for half that, but it was still too much.  Then Vivint Solar came to their door with a proposal which they accepted.  Two of their friends who lived in the area (including an engineer who looked at the schematics) had already had the solar panel installed.  The basis for the deal is that Vivint Solar is ‘renting the roof’, and so there is no upfront cost.  My parents get a percentage of the electricity generate by the solar panels and the rest Vivint Solar sells to NStar (or whatever energy company who is the energy provider).  Their bill to Vivint Solar fluctuates based on the amount generated and the amount used but has been about $60-80.  Their electric bill used to be about $200/month.  This summer they have been paying nothing or a few dollars to NStar.  They expect to pay more in the winter, but it should still be about half of what they were paying before.  It seems like a good deal economically as well as environmentally.

Their next step is changing their heating and cooling system so that they are much less dependent on oil.  This proposal came from Next Step Living.  My parents knew nothing about this, but are interested in helping the environment and this proposal also came with no upfront costs.  Two of their friends also have this technology in their homes.  It is a Total Climate Control system made by Fujitsu that works with condensers outside of the house.  Each room gets a heating and cooling unit or a vent in the ceiling from a unit in the attic, each of which has an individual thermostat.  The oil system stays in place because the system doesn’t work when the temperature gets too cold (as in -5 degrees Fahrenheit).  Before it is installed an energy audit is required.  My parents had Next Step Living do it.  They were given a list of suggestions and free energy efficient lightbulbs.  They are only paying $500 of the cost of implementing the suggestions.  In terms of the money, Next Step Living works with Commerce Bank, NStar and MassSave, and my parents are securing a zero interest loan of about $23,000.  It will take them about 7 years to repay after which they will own the system and not have to pay.  It means that instead of paying $340/month for oil, they will pay whatever small amount they use when it gets really cold in the winter and $274/month to repay the loan for those 7 years.

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High Tide on Main Street by John Englander

I read this book based on a recommendation of another blogger and I am so glad I did.  One of the best things about it is the amount of charts, graphs and pictures that are used.  It is particularly helpful when he shows graphs of long periods of times and then blows up the more recent past to show the effects that recent greenhouse gas emissions have had.  I realize that I was already a believer, but it does seem to prove that humans are changing the atmosphere and sea level.

This book has a lot of science in it, but it was still incredibly readable.  I am not someone who enjoys reading science textbooks, or even scientific studies.  John Englander has made the science understandable and easy to digest.  There were plenty of things I wasn’t aware of – like the cycle of ice ages and how we are actually due to start the cooling phase heading toward another ice age.  The sea level is at the high point with less water trapped in ice sheets.  It looks like this started to happen in the past centuries but something (humans) changed the course of history.  (Not to sound too dramatic.)

Did you know?  Sharps Island off Maryland sunk into the Chesapeake Bay in 1962?  Apparently due to sea level rise, erosion and sinking land.  Holland Island, also in the Chesapeake, disappeared in 2010.  Or how about this?  “At our current rate of carbon emissions, we will increase carbon dioxide levels… roughly 20,000 times faster than at any time in the last 540 million years.  Temperatures… are now rising about 55 times faster than they did even during the most recent cycle of glacial melting.”

Englander also talks about the impacts of sea level rise.  Here is a website that models sea level rise on the coastline of the U.S.: Climate Central.  The NOAA also has one.  He goes through various cities and talks about what they would face and how much of their population would be effected.  It is worth noting that along with changes in shoreline, the water table will rise with sea level and so many inland areas will also be affected.

Here are a couple more links from the book that I thought were interesting:

climatescoreboard.org

skepticalscience.com


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Zero Carbon Britain

The Center for Alternative Technology in Britain released a report that says Britain could reduce their carbon emissions to net zero by 2030.  It means we don’t need to rely on technology that hasn’t been developed.  I hope it gets good publicity and maybe the U.S. can see what options are really available.

Executive Summary


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Overheated by Andrew Guzman

The subtitle for this book is The Human Cost of Climate Change.  It paints a scary picture of what the world will look like in fifty years and a hundred years.  It also makes a compelling argument for why we can’t afford to ignore what is happening.  The book assumes that there will be a 2 degree Celsius rise in temperature by 2100.  This is on the low end of the temperature rise that can be expected.  It’s smart in that it allows the author to avoid being considered too alarmist and it turns out even a 2 degree rise would be horrific.  I think everyone should read this book.  Rather than write a true review, I would like to highlight some of the author’s major points.

I knew that the Industrial Revolution was the beginning of humanity’s love affair with releasing greenhouse gases (GHGs, the most important of which is carbon dioxide) into the atmosphere.  What I didn’t realize was that the Earth didn’t start warming immediately.  It wasn’t until the 197os and 80s that it started and it started slowly.  This delay means that even if we stop releasing GHGs entirely right now the Earth would still warm for a while.

One of the major human impacts of climate change will be the displacement of people.  People will be forced out of their homes for a variety of reasons; rising oceans will force people away from the coast, higher temperatures will cause droughts and widening deserts, glaciers melting will cause floods in one season and droughts in another.  Glaciers store water and release it into rivers as they melt.  Melting too fast or disappearing and melting not at all creates floods, droughts and then a lack of water.  Hurricanes and other major weather events will get worse because warm ocean water fuels hurricanes.  These displaced people will live in refugee camps and overcrowded cities that will have poor sanitary conditions and people packed together breed disease.

The politics involved in global warming are complicated to say the least.  But certain things are relatively clear.  Rivers don’t pay attention to political boundaries and the need for water will cause conflict.  For example, Turkey puts a dam on the Euphrates River and Syria and Iraq have a lot less water to work with.  Tens of thousands and maybe millions of people moving to other countries when their countries are no longer habitable will also cause political tension.

What you don’t want to know:  There are island nations, including the Maldives and Tuvalu, who will disappear under the sea even if we start cutting GHG emissions right now.  “The level of GHGs today is higher than at any point in at least 650,000 years and is currently rising more than fifty times as fast as what would be caused by natural fluctuations.”  “The best information we have from still-earlier periods suggests that you would have to go back at least 15 million years to find another time with concentration levels [of CO2] as high as today’s.  During that period, temperatures were much warmer than they are today, sea levels were 20 to 35 meters higher, and no permanent ice cap existed in the Arctic.”  “Every year, a part of Nigeria about the size of Rhode Island turns to desert.  Across the continent, the Sahara is spreading southward at a rate of more than three miles a year.”  “Between the mid-1970s and the year 2000, for example, climate change caused the annual loss of more than 150,000 lives….”


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WMO: ‘Unprecedented’ global warming from 1990 to 2010

This is scary, but really important.

Summit County Citizens Voice

Rate of sea level rise doubled in the first decade of the 21st century

By Summit Voice

FRISCO — High-impact climate extremes and record warmth in many parts of the world marked the 2000-2010 period, according to the World Meteorological Organization, which last week released a report detailing the globe’s climate during the first 10 years of the 21st century.

It was the warmest decade since the start of modern measurements in 1850, with more national temperature records broken than in any previous decade. Along with analyzing  global and regional temperatures and precipitation, the report took a close look at extreme events, including heat waves in Europe (2203) and Russia (201o), Hurricane Katrina in the United States of America, Tropical Cyclone Nargis in Myanmar, droughts in the Amazon Basin, Australia and East Africa and floods in Pakistan.

The decade was the warmest for both hemispheres and for both land…

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