Guest commentary from Drew Shindell There has been a lot of discussion of my recent paper in Nature Climate Change (Shindell, 2014). That study addressed a puzzle, namely that recent studies using the observed changes in Earth’s surface temperature suggested climate sensitivity is likely towards the lower end of the estimated range. However, studies evaluating model performance on key observed processes and paleoclimate evidence suggest that the higher end of sensitivity is more likely, partially conflicting with the studies based on the recent transient observed warming. The new study shows that climate sensitivity to historical changes in the abundance of aerosol particles in the atmosphere is larger than the sensitivity to CO2, primarily because the aerosols are largely located near industrialized areas in the Northern Hemisphere middle and high latitudes where they trigger more rapid land responses and strong snow & ice feedbacks.
Unburnable carbon 2013: Wasted capital and stranded assetsThis new research from Carbon Tracker and the Grantham Research Institute on Climate Change and the Environment at LSE calls for regulators, governments and investors to re-evaluate energy business models against carbon budgets, to prevent $6trillion carbon bubble in the next decade. Unburnable carbon 2013: Wasted capital and stranded assets has revealed that fossil fuel reserves already far exceed the carbon budget to avoid global warming of 2°C, but in spite of this, spent $674billion last year to find and develop new potentially stranded assets. “Smart investors can see that investing in companies that rely solely or heavily on constantly replenishing reserves of fossil fuels is becoming a very risky decision.
Australia's carbon bubbleThe Australian Coal Association recently hired some consultants (ITS Global) to review the carbon bubble thesis. For clarification, here are our corrections and responses to their output. The two degree commitment Our reports use this as a reference point, as it is indeed the stated objective of the international community. We respect the right of companies, investors and other parties to take a view on how likely this outcome may be.
Die fünf großen Klima-IrrtümerAnzeige Ist die Angst vor der Erderwärmung übertrieben? Macht der Klimawandel Pause?Beyond Zero EmissionsIEAClimate change Promoting sustainable development and combating climate change have become integral aspects of energy planning, analysis and policy making. Because energy accounts for two-thirds of total greenhouse gas emissions and 80% of CO2, any effort to reduce emissions and mitigate climate change must include the energy sector. Global energy-related CO2 emissions grew by 1.4% in 2017, reaching a historic high of 32.5 gigatonnes (Gt), a resumption of growth after three years of global emissions remaining flat. The increase in CO2 emissions, however, was not universal.
Die KlimakriegerWie von der Industrie bezahlte PR-Manager der Welt seit Jahren einreden, die Erderwärmung finde nicht statt. Chronologie einer organisierten Lüge. Speichern Drucken TwitterClimate Action TrackerHow a Professional Climate Change Denier Discovered the Lies and Decided to Fight for ScienceThe hardest part of reversing the warming of the planet may be convincing climate change skeptics of the need to do so. Although scientists who study the issue overwhelming agree that the earth is undergoing rapid and profound climate changes due to the burning of fossil fuels, a minority of the public remains stubbornly resistant to that fact. With temperatures rising and ice caps melting — and that small minority in control of both Congress and the White House — there seems no project more urgent than persuading climate deniers to reconsider their views.
Making Sense of Climate Science DenialCourse Syllabus Skip Syllabus DescriptionWEEK 1: Understanding The Climate Controversy During the first week of the course, we introduce the course content, interact with each other and complete an introductory survey. The week continues with an exploration of political consensus, the drivers and psychology of climate science denial and an overview of the controversy surrounding this topic.WEEK 2: Global Warming Is Happening In week two, we will look at the indicators of global warming and myths related to temperature and glaciers.