Showing posts with label world CO2 emissions. Show all posts
Showing posts with label world CO2 emissions. Show all posts

Wednesday, November 9, 2022

COP27 Opens in Egypt

 This week the 27th Conference of the Parties (COP27) opened its meeting in Sharm el-Sheikh, Egypt. The conference will run until November 18th 2022. The prospects for significant progress appear dim.

If you recall, in December 2015 at the 21st Conference of the Parties in Paris, Delegates from 196 countries reached an agreement that we all hoped put the nations on a course to reduce carbon dioxide emissions from the combustion of fossil fuel.

Under the Paris Agreement, every country agreed to work together to limit global warming to “well below 2 degrees” and aim for 1.5 degrees, to adapt to the impacts of a changing climate and to make money available to deliver on these aims to countries not able to afford the costs of adapting to a changing climate. The parties to the agreement committed to create national plans setting out how much they would reduce their emissions called Nationally Determined Contributions (NDC). Furthermore, they agreed that every five years they would come back with an updated plan that would reflect their highest possible ambition at that time.

The Covid-19  pandemic forced the delay of the COP 26 meeting and it was held last year in Glasgow, Scotland. However, only a limited number of countries and political organizations including the European Union, Japan, the UK and the United States submitted strengthened NDCs ahead of the Glasgow meeting.  Only 23 countries have submitted updated NDCs by the deadline for this meeting and that list includes only one major economy, Australia. Their NDCs now bring them in line with their peers.

The United States (by executive order and administrative action) has set a goal to reach 100% carbon-free electricity by 2035 and net zero emissions throughout the economy by 2050. The problem is that the reduction in emissions pledged so far are nowhere near sufficient to hold temperature change to 2 degrees Celsius according to the climate models. China in 2021 is the largest CO2 emitter at about 30% of the total- dwarfing the United States at 14%. China has only agreed to stop growing their CO2 emissions by 2030. The goals of the Paris Agreement cannot be met without reductions in China and the other nations still growing their emissions. Egypt's NDC submitted this year would increase their CO2 emissions 50% by 2030. 



Sadly, CO2 emissions from fuel have continued to grow year after year with the exceptions of a brief respite during the global financial crisis and the Covid-19 lockdowns. Now, European Countries have been buying coal to use for electricity generation to replace the natural gas unavailable due to the war in Ukraine, China is finally showing signs of opening up their economy and CO2 emissions are expected to resume their climb. Coal plants that were scheduled to shut down will continue to operate and several recently shut down coal fired turbines have be restarted. Coal fired electricity generation emits about twice the CO2 as natural gas. 

Prior to the Paris Agreement the world was heading for a 3.6 degree Celsius warming. The policies in place today would lead to a warming of about 2.7 degrees Celsius by 2100. If countries fully implement their NDC’s it would be around 2.4 degrees Celsius by 2100. The increase in extreme weather promised by the climate models appears to be in our future. 

Thursday, June 13, 2013

Earth is Projected to Warm 10 degrees Fahrenheit this Century

from IEA presentation
On Monday the International Energy Agency (IEA) released a series of recommendation for measures that might curtail the rapid growth that has occurred in carbon dioxide emission from fuel combustion that has taken place in the past few decades despite treaties, meetings and conferences. Global greenhouse gas emissions are increasing rapidly and, in May 2013, carbon-dioxide (CO2) levels in the atmosphere exceeded 400 parts per million for the first time in several hundred millennia.

The IEA has tracked world energy use since its creation in response to the oil embargo of the 1970’s. Energy use for electricity, industry and transportation accounts for around two-thirds of greenhouse-gas emissions, as more than 80% of global energy is based on fossil fuels.


According to the IEA, policies that are now being pursued by developed nations, are predicted (by the accepted group of climate models) to produce a long-term average temperature increase between 3.6 °C and 5.3 °C (6.5-10 degrees Fahrenheit above pre-industrial conditions), with most of the increase occurring during this century. Unfortunately, until the planet is in severe stress, it is unlikely that a concerted effort by all the nations will even be considered. Until then, the richer nations will dally with reducing their carbon footprint while the emerging nations and China race to build wealth with only limited regard for the environment.

Though mankind has blown through the tipping point in CO2 emissions that was just a decade ago referred to as the point of no return, the IEA is making policy recommendations that might hold the global temperature increase to 2 to 4°C by cutting global CO2 emissions growth so that it does not exceed 38.75 billion metric tonnes from fossil fuels in 2020. The recommendations are:
  • Installing energy efficiency measures in buildings, and requiring increased efficiency in industry and transportation. 
  • Preventing the construction of and limiting use of the least-efficient and dirtiest coal-fired power plants. In addition to increasing the share of power generation from renewable sources (including nuclear) and from natural gas. 
  • Reducing methane released from the processing and distribution of oil and gas by replacing aging infrastructure and improving technology implementation. 
  • Finally phasing-out fossil fuel consumption subsidies to reduce consumption and support efficiency efforts. 

While trying as a first priority to reduce the generation of CO2 from fuel, they are also trying to expand the generation and availability of electricity to poorer nations as another policy program. The IEA and World Bank estimate that there are more than 1.2 billion people who still live without access to electricity and are working to increase electricity availability to the poorest nations on earth which also have the fastest growing populations. This is about 17% of the world’s population living in poverty.

The program to cut world CO2 emissions and the program to expand electricity availability to poorer nations appear to be in conflict, though I suppose that there are policy wonks dreaming that the poorest nations will electrify using only renewable sources of electricity or that the rest of the world will cut their CO2 emissions enough to reduce the overall CO2 trajectory with increasing portions of the earth have available electricity. Without electricity there can be little economic development. Electricity powers critical health equipment to improve the health and survival of the population. Electric lighting supports evening and indoor activities and commerce. Electricity used in classroom to support use of information technology. Electricity powers factories and businesses. Reliable, food, water, sewage and electricity are the necessary infrastructure for an advanced nation.

Monday, December 3, 2012

More Climate Talks, But It's Too Late


The United Nations Framework Convention on Climate Change meeting in Doha, Qatar to once more discuss, negotiate and talk about climate change has reached the halfway point. Concerns crystallized by the recent damage from Hurricane Sandy have resulted in 17,000 attending the conference, but that is the only good news. The goal of all these meetings is to negotiate a new agreement by 2015 that will become effective by 2020 to replace and expand the Kyoto Protocol. If an agreement can be negotiated, and this is a big if, it will extend CO2 mitigation requirements to all countries, both developed and developing. Environmental activists and climate scientists, the Alliance of Small Island States, the Africa Group and the Least Developed Countries group are all calling for deeper carbon cuts now to avert climate impacts. However, if the climate models are correct, it's too late. The die is cast.  Though many nations had pledged to keep global warming from exceeding two degrees Celsius, according to the climate models the CO2 emissions trend will produce between 3 and 5 degree Celsius increase in global temperatures and we should be planning for the future we will have and hope for a better one.

According to the International Energy Agency, IEA, 2011 estimates of world CO2 emissions from fossil fuel combustion, World CO2 emissions rose by 1 billion metric tons in 2011, a 3.2 % increase  to reach 31.6 billion metric tons. In 2011 the top four world generators of CO2 emission from fossil fuels were in descending order China, the United States, the European Union and India who edged out Russia to take the number four slot. There is no short term action that will stop the CO2 concentrations from reaching the climate model project tipping point of 32.6 billion metric tons of CO2 emissions annually just 1 billion metric tons above current levels and the amount the world emissions increased last year.

China, the largest emitter of CO2 increased their emissions the most. China contributed almost three quarters of the global increase, with its emissions rising by 720 million metric tons, or 9.3% to 8.46 billion metric tons of CO2, primarily due to higher coal consumption. India’s emissions rose by 140 million metric tons or 8.7% to 1.75 billion metric tons. CO2 emissions in the United States in 2011 fell by 92 million metric tons of CO2 or 1.7% to an estimated 5.32 billion metric tons.  U.S. emissions have now fallen by 430 million metric tons or 7.7% since 2006, the largest reduction of all countries or regions. Unfortunately, this decrease has been made practically meaningless by the unrelenting growth in China and India.

China’s chief climate negotiator Xie Zhenhua recently announced that China’s CO2 emission would peak around 2030, pointing out that its per capita gross domestic product would have only reached half the level of other developed countries’ CO2 emissions when they peaked. No comment was made on the projected peak per capita CO2 emissions. In 2010 China surpassed the US in manufactured output, energy use and car sales. According to the International Monetary Fund, IMF, China will shortly be the world's largest economy. However, while the economy has been growing leaps and bounds, China's total fertility rate (the average number of children a woman has during her lifetime) has fallen to 1.56. The United Nations now projects that China’s population will peak in 2026. So after China’s population begins to decrease, they anticipate that their CO2 emission will peak. Yeah, I would project that, too-it is the natural course of events.  China’s delegate to the current conference,  Su Wei, indicated that they expect China and other developing countries to remain exempted from CO2 reduction requirements for the next treaty making the current discussion entirely pointless and changes the direction the negotiations should take. The world needs to develop plans to survive the bulge in CO2 emissions and any climate consequences from China's sprint to peak population and peak CO2 emissions.
From the Economist using UN data

Unlike the rest of the developed world, China's population control policy of one child will cause the nation to grow old before it grows rich. In 2010 8.2% of China's total population was over 65. The over 65 segment it is expected to grow to 26% by 2050. Right now China represents approximately 20% of the world's population. As their population ages and declines, CO2 emissions are expected to stabilize and decline. For comparison in the United States 13% of the population is over 65 and that is forecast to grow to 21% by 2050. U.S. CO2 emissions are falling and our nation is well on track to meet the President’s promise of reducing CO2 emissions 17% below 2005 levels by 2020. Though, the CO2 emissions per capita in the United States is still three times the level in China. As the population of the United States continues to grow, to  be able to grow GDP and reduce CO2 emissions would be a significant achievement. Unfortunately, this decrease will be made almost meaningless by the unrelenting growth in CO2 emissions in China and India. We have little leverage and no control over those nations and so the global CO2 levels will continue to grow until those nations peak. Possibly we should be planning for moving population centers away from the coastal estuaries to better survive rising oceans and increasing storm intensity. 
Chart from IEA 2012 publication

Thursday, May 3, 2012

IEA Says $ 5 Trillion needed to Prevent Global Warming


International Energy Agency (IEA) was established in November 1974 in response to the global oil crisis created by the Organization of the Petroleum Exporting Countries (OPEC) oil embargo. Its primary mandate was to promote energy security amongst its member countries by organizing a collective response to future oil embargo's or other disruptions in the oil supply. Over the years the mission has evolved to include holding global warming at 2°C by providing policy recommendations for ways to ensure reliable, clean energy for its 28 member countries (which includes the United States). The IEA has become a tracker of carbon dioxide releases and investment in carbon control technologies. They released their annual progress report to member countries on implementing clean energy and carbon dioxide controls worldwide geared to preventing global temperatures from increasing more than 2°C above pre-industrial levels called the Energy Technology Perspectives 2012 2°C Scenario Report, EDP 2DC for short .

Though filled with cheerful statement about accomplishments in installing solar panels and the growth in wind turbines, the report tells us that the world is not really doing that well at instituting clean energy technologies. The EDP 2DC, states that it is still feasible to prevent the earth’s temperature from rising more than 2 degrees Celsius if “timely and significant government policy action is taken, and a range of clean energy technologies are developed and deployed globally,” but we’re pretty much out of time. The government action required is spending more money, much more money. The money is to be spent for the development and implementation of clean technologies to reduce Energy related CO2 emissions by over 5 billion metric tons before 2020 and continue to fall thereafter to less than half of the current level while world population continues to grow. The IEA estimates that the  additional investment cost of achieving these carbon reductions would cost $5 trillion by 2020, but the countries would save $4 trillion (in future dollars) in fuel not burned from the scenario where the world just marches forward on its current path and doubles it’s fossil fuel use by 2050.

Worldwide CO2 emissions are up 6% from 2009, to over 30 billion metric tons, in 2010. Thirty billion metric tons of CO2 is an increase of 40% above the 1990 levels and it seems impossible that any group of policy recommendations will stop the increase in energy use in the emerging markets from continuing. The IEA estimates that the since 2000, China has more than tripled its installed capacity of coal power plants, while India’s capacity has increased by 50%. Unfortunately, they have not used to most efficient designs and technologies available in those plants. In addition, while the IEA strategy includes doubling the nuclear power capacity by 2025, almost 440 nuclear reactors in operation across the world remained virtually constant over the past decade, with 32 reactors shut down and the same number added to the grid. Overall, nuclear capacity increased by 6%, due to installation of larger reactors and power upgrades in existing reactors.  However, Germany, Belgium, Switzerland and Japan have developed plans to phase out their nuclear reactors in the next decade in response to the damage to the nuclear reactors that occurred in the Japanese tsunami. Finally, while wind and solar power have enjoyed significant growth in the past few years, the world economic climate has forced many nations (notably Germany and Spain) to reduce or eliminate solar incentives and IEA doubts that the growth rate in this area can be sustained. 

The worldwide level of CO2 is higher than the worst-case scenario outlined by climate experts just five years ago, but fortunately temperatures have not (yet) risen as projected by the climate models.  The relationship of climate change to worldwide CO2 levels may not be the one assumed in the climate models, nonetheless, the IEA report assumes the projections of the climate models are the absolute trajectory of global temperatures.  Recently,  the U.S.Environmental Protection Agency (EPA) announced total gross US emissions of CO2 equivalents in 2010 was to 6,822 million metric tons of carbon dioxide gross,and 5,746 million metric tons of CO2 net of the carbon sink of our forests. The peak of CO2 emissions in the US was 2007 and though emissions have increased since 2009, they are still below 2007 levels. This is true for most of the older first world nations whose carbon emission have already peaked or have slowed their growth significantly. Now the developed world is struggling with huge budget deficits, how to implement austerity measures and how to fund the entitlements programs, pensions, health care and other government promises. The emerging nations are sprinting to build power infrastructure in their nations where significant portions of their citizens do not have reliably available electric power or yet have cars. This does not seem to be a scenario where the recommended policies and strategies are likely to be implemented.

The IEA report talks about how technologies from electric vehicles, solar panels, nuclear generators, to wind farms and technologies to sequester carbon can make a decisive difference in limiting global temperature rise to 2°C above pre-industrial levels. EDS 2DC provides policies for nations on how to spend their way to a cleaner energy future. The IEA believes that the technologies with the greatest potential for energy and carbon dioxide (CO2) emissions savings are making the slowest progress: “carbon capture and storage (CCS) is not seeing the necessary rates of investment into full-scale demonstration projects and nearly one-half of new coal-fired power plants are still being built with inefficient technology; vehicle fuel-efficiency improvement is slow; and significant untapped energy-efficiency potential remains in the building and industry sectors.”

The development of carbon sequestion technology is a one of the big leaps of faith, but the implementation of energy saving strategies like insulation, efficient lighting and higher efficiency heating and air conditioning systems, on commercial and residential buildings are seemingly easy improvements because they show a short term and immediate return on investment and are simple to do. Commercial and residential buildings account for 32% of energy use and improved insulation and changes in temperature settings, lighting efficiency and other small choices could reduce world energy use 8-10% yet nations have failed to adopt regulations and implementation strategies to promote this. We have failed to accomplish even the most straight forward of the policy goals while spending huge amounts of money on renewable energy incentives. The IEA continues to pursue a mirage of a future where renewable energy and carbon sequestion will save us. Instead, IEA needs to spend their brain power and resources in developing strategies for living in the world we are going to find ourselves in.