Tag: "global warming"

11/30/18

  07:50:00 pm, by Jim Jenal - Founder & CEO   , 947 words  
Categories: Climate Change

Climate Assessment Report: Dire Threat Largely Ignored

On Black Friday, the Trump Administration released the 4th National Climate Assessment report, presumably in the hope that most Americans would still be too stupefied  from their food coma and shopping binges to notice.  So here we are a week later, and hopefully woke.  Because the message of the report is a dire warning of what is already happening and what is to come. We ignore it at our peril.

From ClimateNexus:

This U.S. federal government report shows that:

  • Human activity, like burning fossil fuels, is the primary cause for the warming temperatures we are undoubtedly experiencing.
  • By the end of this century, fighting climate change will save hundreds of billions of dollars just in public health costs, and save thousands of lives a year.
  • Americans are already paying for climate change as it makes storms more damaging, heat waves more deadly, wildfires more common, allergies worse and some diseases more widespread.
  • The U.S. military, as well as many farmers, businesses, and local communities are already planning for and adapting to climate change.
  • Climate change is a clear and present danger to the health and wealth of the American people.

Topline findings of the report include:

Human activity, primarily burning fossil fuels, is causing climate change. There is no credible alternative to global warming emissions to explain the warming.

  • Global average temperatures have risen 1.8°F (1.0°C) since 1901, predominantly because of human activity, especially the emission of heat-trapping gases.
  • Globally, 16 of the last 17 years are the warmest years on record.
  • Depending on the region, Americans could experience an additional month to two month’s worth of days with maximum temperatures above 100°F (38°C) by 2050, with that severe heat becoming commonplace in the southeast by 2100.

Economic losses from climate change are significant for some sectors of the U.S. economy.

  • In some sectors, losses driven by the impacts of climate change could exceed $100 billion annually by the end of the century.
  • If emissions continue unabated, extreme temperatures could end up costing billions upon billions in lost wages annually by the end of the century, and negatively impact the health of construction, agricultural and other outdoor workers.
  • Many aspects of climate change – including extreme heat, droughts, and floods – will pose risks to the U.S. agricultural sector. In many places, crop yields, as well as crop and grazing land quality, are expected to decline as a result.
  • We may be underestimating our level of risk by failing to account for multiple impacts occurring at once, or not planning for impacts that will span across government borders and sector boundaries.
  • Our aging infrastructure, especially our electric grid, will continue to be stressed by extreme weather events, which is why helping communities on the frontlines of climate impacts to adapt is so crucial.

Americans are already responding to the climate change impacts of burning fossil fuels.

  • Increased global warming emissions have contributed to the observed increases in Atlantic hurricane activity since 1970.
  • Climate change doubled the area burned by wildfires across the West between 1984 and 2015, relative to what would have burned without warming. Climate change was a greater factor in area burned between 1916 and 2003 than was fire suppression, fire management or non-climate factors.
  • By 2100, annual acreage burned by wildfires could increase by as much as 6 times in some places. The U.S. spends an average of about $1 billion annually to fight wildfires, but spent over $2 billion in 2015 due to extreme drought. Costs exceeded $2 billion in the first 8 months of 2017.
  • The U.S. military is already working to understand the increased risks of security issues resulting from climate change-induced resource shocks (droughts causing crop failure, for example, which can contribute to civil unrest) as well as extreme weather events and direct impacts on military infrastructure, like sea level rise or extreme heat at military bases.

Storm surge and tidal flooding frequency, depth and extent are worsened by sea level rise, presenting a significant risk to America’s trillion-dollar coastal property market.

  • Global sea level has risen about 8-9 inches since 1880, 3 inches of which have come since just 1993. We can expect at least several inches more in the next 15 years, with 1-4 feet very likely by 2100, and as much as 8 feet physically possible by 2100.
  • Sea level rise has already increased the frequency of high tide flooding by a factor of 5 to 10 since the 1960s for some U.S. coastal communities.
  • Climate change is already hurting coastal ecosystems, posing a threat to the fisheries and tourism industries as well as public safety and human health. Continuing coastal impacts will worsen pre-existing social inequities as vulnerable communities reckon with how to adapt.

Every American’s health is at risk from climate change, with the elderly, young, working class and communities of color being particularly vulnerable.

  • Reducing greenhouse gas emissions will, by the end of the century, potentially save thousands of lives annually, and generate hundreds of billions of dollars of health-related economic benefits compared to a high emissions scenario.
  • Allergies like hay fever and asthma are likely already becoming more frequent and severe.
  • Warmer temperatures are expected to alter the range of mosquitoes and ticks that carry vector-borne diseases like Zika, West Nile virus, dengue, chikungunya and yellow fever.
  • Drier conditions in Arizona and California have led to greater growth of the fungus that leads to Valley Fever (coccidioidomycosis) while Cryptococcal infections were strictly tropical before 1999, but have moved northward, with Oregon experiencing 76 cases in 2015.
  • West Nile is projected to double by 2050, with a $1 billion annual price tag.

Transitioning from fossil fuels to renewable energy sources will reduce the risks of climate impacts.

  • A certain amount of warming is likely “locked in” so adaptation is still required.
  • The faster we reduce global warming emissions, the less risk we face and the cheaper it will be to adapt.

 

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11/16/18

  12:14:00 am, by Jim Jenal - Founder & CEO   , 350 words  
Categories: Climate Change

NY Times asks: How much Hotter is Your Hometown than when You were Born?

Nothing warms the cockles of a data-geek’s heart more than seeing really cool data visualizations, and if that visualization  helps illustrate a vital subject in an easy-to-grasp manner, well that is a data geek jackpot.  Probably no one does data visualizations better than the folks at the New York Times, and their latest is amazing - driving home the impact of climate change in a way that is both personal and dramatic.

Titled, “How much Hotter is Your Hometown than when You were Born?” it allows the user to enter their hometown (Los Angeles, in my case) and year of birth.  According to their dataset, there were roughly 55 days when I was born where you could expect temperatures to reach 90 degrees (F).  Scroll down the page, and a graph is charted, showing the increase in days reaching 90 over the years, hitting 67 days in 2017, as you can see here:

 hotter in la

But if you continue to scroll down it gets even more alarming:

LA temps in 2089

Wow - at present trends, by 2089 there could be anywhere from 84 to 104 days of 90 degrees or better, with 93 days being the most likely number.  But these predictions assume that the world will adhere to the Paris Climate Agreement, and given recent developments in both the U.S. and Brazil, that is increasingly unlikely.

Of course it isn’t just the heat, it’s the humidity, and the visualization notes that areas with higher humidity than LA will feel the heat even more.

On the other hand, areas that experience dry heat, are likely to experience greater drought, and as we have so painfully seen these past few weeks, even more intense and deadly wildfires.

In other parts of the world the forecast is even more daunting.  Take a city like Jakarta - it already averages more than five months of temperatures above 90!

Map showing heat in Jakarta

According to those projections, by the end of the century, temperatures above 90 degrees in Jakarta, “may last for most of the year.

There is a lot more useful information there and I encourage you to check it out.  Would that all information about Climate Change were presented in an equally compelling manner - bravo, NYT!

08/06/17

  02:48:00 pm, by Jim Jenal - Founder & CEO   , 165 words  
Categories: All About Solar Power, Climate Change

100 Years of Global Warming in 35 Seconds!

As regular readers of this blog know, we are major “data geeks” here at Run on Sun, and there is hardly anything that lights our fires more than a brilliantly executed data visualization!  Well Antti Lipponen, a researcher at the Finnish Meteorological Institute, has just published what may be one of the greatest data visualizations ever, demonstrating 100 years of global warming in a mesmerizing 35 seconds! (H/T Yale Environment 360.)

Check it out…

Using temperature data from the world’s 191 countries, Lipponen’s stunning video turns a boring dataset into a compelling image of the rapid change that we are experiencing.  Using both color (warmer temperatures appear in warmer colors) and height (the length of each country’s bar is its departure from the averaged baseline), you can almost feel the pulse of the ever-warming Earth.

This visualization brings vividly home that we have a lot of work ahead of us, and such is the power of data used properly.  Congratulations, Mr. Lipponen, you are our new favorite data geek!

12/01/15

  03:24:00 pm, by Laurel Hamilton   , 1009 words  
Categories: Climate Change

World Leaders Talk Climate Solutions - Solar Stands Out

COP21 LogoMonday marked the onset of what may be the most important (and most exciting) gathering of world leaders in human history. From November 30 to December 11, representatives from more than 190 countries are coming together to reach agreement on global climate efforts at the United Nations Conference of Parties (COP21) in Paris.

There is a great deal of optimism around the world as national heads come together with commitments in hand. This is a huge step forward compared to past climate conferences which have failed to reach any target that the world could agree upon. It remains to be seen if this positive momentum will result in an accord with the power to spur change on a global scale. 

So what is COP21 all about?

United NationsIn preparation for the conference, the United Nations’ Intergovernmental Panel on Climate Change (IPCC) evaluated the current research (over 30,000 papers) on the science of climate change. The key takeaway in their synthesis: Scientists are now more certain than ever that climate change is real; it’s caused by human activities – especially the burning of fossil fuels; and it’s already impacting people around the world, from rising sea levels to more extreme weather events. Hence the overarching goal in Paris this week is to frame a deal to prevent Earth from warming above the point of no return (more than 2°C).

In the months leading to the conference nearly every country on the planet submitted their commitments to reduce greenhouse gases based on the IPCC report, called Intended Nationally Determined Contributions (INDCs). The United States’ INDC outlines a commitment to cut emissions by 26-28% below 2005 levels by 2025, mostly by reducing CO2 emissions from coal-fired power plants.

All 156 INDCs, representing 97.8% of global emitters, will be plugged into a final document crafted through the high level negotiations. The COP21 final accord will actually be divided into a “core agreement,” laying out the broad objectives for emissions reduction and how to pay for poor nations’ efforts, and “decisions” describing how these objectives will be achieved.

One hot issue to be settled in Paris is over the legal status of this document. A formal treaty would need the impossible approval of the Republican-controlled US Senate. Instead, President Obama will likely sign off on the accord as an “executive agreement.” There seems to be an understanding that the “agreement” would have more binding legal status than the “decisions,” which would include the national pledges and be subject to revision. The US has held that they will not sign any legally binding emissions targets.

While the commitments to cut emissions by the world’s countries is a great start, without legally binding targets and accountability, these promises hold little weight. It will also be interesting to see if, and how, leaders will establish a path forward with plans to reconvene and re-affirm their targets regularly.

Will the Paris accord stop climate change?

The unfortunate reality is that even if every country followed through with their commitments, scientists estimate that global warming will be about 2.7 degrees Celsius above pre-industrial levels. Given that a 2 degree increase is the limit necessary to avert the worst impacts, we will still need to focus on adaptation as well as mitigation to climate change. But on the bright side, it’s a lot less warming than would happen if we continue the status quo without curbing any emissions at all!

This summit isn’t the end of the fight to limit climate change. But considering there has never before been international agreement on climate efforts - the Kyoto Treaty never got off the ground, due in large part to the failure of the US to join - it is a huge step to come together in the battle. As technologies such as solar improve and countries become more confident in their ability to transition to cleaner energy, they can step up their action over time.

COP21 Too Late

What impact will COP21 have on the fate of clean energy?

Renewable energy stands out as the most common strategy for meeting targets out of all of the INDCs! This is a great sign of growing prospects for the solar industry. According to research by the World Resources Institute, if Brazil, China, the EU, India, Indonesia, Japan, Mexico, and the United States follow through on their commitments, the amount of clean energy installed will more than double by 2030! 

The US targets were largely based on the projected outcome of Obama’s Clean Power Plan, which limits greenhouse gas emissions from coal plants and aims to get 20% of electricity from renewables by 2030. The Clean Power Plan has yet to be approved by the Senate and has significant opposition. One can hope that the COP21 and international pressure to act will help on this front. But in a climate where federal tax credits are under threat and state-level clean energy incentives are rapidly drying up, the US commitments on an international stage could be an important backstop to helping the renewable energy sector grow.

Outside the negotiating rooms, thousands of business leaders, state officials, activists, scientists and others from the private sector are also holding events and meetings. The mere existence of the political agreements taking place will lead to increased investment in the renewable energy sector. While the value of political will to accomplish the enormous task of an energy transition shouldn’t be underestimated, the private sector is likely where the real growth will occur without the partisan challenges of the government.

On a final note, we at Run on Sun are thrilled about the events in Paris this week. As the international community finally comes together to tackle climate change our optimism about the world’s ability to act meaningfully is renewed! However, the work that must be done doesn’t end this week. Next week, next month, next year and on and on the fight will continue. Governments, the private sector, and even individuals must continue to act every day on behalf of the only planet we’ve got. Going solar is one of the best ways to reduce your emissions impact from your home or business. We look forward to doing our part!

11/12/14

  07:05:00 am, by Jim Jenal - Founder & CEO   , 235 words  
Categories: Climate Change

US & China Agree on GHG Reductions - UPDATE

In a dramatic joint announcement coming out of the APEC summit in China, President Barack Obama and Chinese President Xi Jinping have committed to significant reductions in greenhouse gas emissions. (H/T climatecrocks.com)

The agreement calls on China to peak its GHG emissions by no later than 2030 and increase the use of non-fossil fuels to 20% by that date.  Meanwhile, the US will cut its GHG emissions by 26-28% (compared to 2005 levels) by 2025.  For the two largest emitters of GHG, these steps by the US and China are historic and much needed.

“As the world’s two largest economies, energy consumers and emitters of greenhouse gases, we have a special responsibility to lead the global effort against climate change,” Obama said Wednesday in a joint press conference with Xi.

UPDATE - We noted that this was a really big deal, but the graph below is truly the picture worth a thousand words:

Significance of US-China carbon deal

While the impact of the actions from the US and China alone are significant, as the graph shows, their greatest benefit is in serving as an example for other countries to follow.

Beyond the practical significance in helping to combat climate change, China’s commitment - coming as it does from the head of the Communist Party - takes away the deniers’ favorite argument: that it is meaningless for the US to act since China never will.  Well guess what, China is acting.

Sorry deniers, what else have you got?

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Jim Jenal is the Founder & CEO of Run on Sun, Pasadena's premier installer and integrator of top-of-the-line solar power installations.
Run on Sun also offers solar consulting services, working with consumers, utilities, and municipalities to help them make solar power affordable and reliable.

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