![]() ![]() ![]() “ What Boeing calls ‘winglets’ and Airbus calls ‘skarklets’ – upturned birdlike tips that improve a wing’s aerodynamics – trim fuel use by up to 5 percent on both new models and retrofitted older vessels.” Some design changes can be quite small, but have powerful effects: For the engine maker Pratt & Whitney, adding a gear to its turbofan engine design cut fuel use by an additional 16 percent.” “ Engines with high rates of air bypass improve fuel efficiency by roughly 15 percent. Over the same period, fuel efficiency of international flights, which use heavier jets, improved by 17 percent.”Įngines are a key area of focus that can help make aviation more sustainable. “ From 2000 to 2013, the fuel efficiency of domestic flights in the United States increased by more than 40 percent. They point towards some good news, with the industry increasing in efficiency: I have a second article in the pipeline where I will talk about the impact of radiative forcing and how this means that the real figure is likely to be higher than 2.5%. They highlight that at a minimum, aviation is responsible for 2.5% of global emissions. In their list of solutions, sustainable aviation was ranked as the 43rd most effective solution to reverse global warming. Most of the figures for today’s article come from Project Drawdown, which was a 2017 initiative to map the top 100 climate change solutions. So, I thought I would write something positive about how this industry can become more sustainable and be responsible for less carbon emissions in the future. I can be reached on LinkedIn and on Twitter has been in the news a lot recently. What do you think needs to be done to make Drawdown a reality? Let’s stay connected Please share your thoughts in the comments section below, or reach out to me on social media. Overall, this is a highly accessible research project that should be read by everyone. All that is needed is the courage to act. We don’t have to wait for a silver bullet or technological breakthrough. I think a really important takeaway should be that the solutions exist now to create a low carbon future where greenhouse gas emissions are falling and not rising. This shows how important it is to focus on doing positive things, instead of merely reducing negative aspects. The lists are quite similar, but solar PV makes a big jump in the more ambitious scenario 2. In this article we looked into the top 10 solutions from each scenario. The new review includes 2 scenarios, which highlight the top 76 solutions needed to limit temperature rises to below 2 oc and ideally 1.5 oc. This article looked into the recently updated Drawdown 2020 review. The top 10 solutions in Drawdown scenario 2 are as follows:Īnother reason to be optimistic, is that with other potential solutions, such as those that are focused on reducing industrial emissions or capping fugitive methane, the world might reach Drawdown even sooner. The top 10 solutions in Drawdown scenario 1 are as follows: This should be seen as a scenario that is compatible with limiting temperature rises to 1.5 oc. With this effort, Drawdown is reached in the mid 2040s. In Drawdown scenario 2, this is much bolder, with faster and more pervasive adoption of the climate solutions outlined in the research project. This should be seen as a scenario that is compatible with limiting temperature rises to 2 oc. In Drawdown scenario 1, this should be seen as ambitious compared to today’s commitments, but it does not reach Drawdown within the period 2020-2050, rather this takes place in the mid 2060s. You can find a link to the updated research here. What is more 2 scenarios have been forecast for how things might play out. The project’s research findings have recently been updated, to keep them as fresh as possible. For all of the attention that climate change has received of late, global emissions have continued to rise. I was confident that it would make a major contribution to the climate change literature.ĭrawdown will be a historic moment, the moment when levels of greenhouse gases in the atmosphere stop climbing and start to steadily decline. ![]() From the moment I first heard about the Project Drawdown initiative in 2017, I was excited about it. ![]()
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