Blue Lines
Joachim MajholmBlue Lines is a nonprofit founded to spread awareness of the climate impact of aviation condensation trails, and to speed up the implementation of contrail avoidance to avoid 1-2% of climate change.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 39 | Subscribers | Read | bluelines.substack.com |
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Latest Issues
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Between silence and science 🤫
#### 🪚 Popular London contrail workshop 🔨
✈️ If countries don't have a plan for reducing contrails, they're breaking the law
When the Paris Agreement was signed in 2015, contrails barely registered in the climate debate. A decade later, the picture is clearer: those thin white lines in the sky account for 1–2% of global warming—and unlike CO₂, much of their impac...
✈️ Is your airline still hiding behind these contrail excuses? 🤷♂️
Over the summer on LinkedIn, we launched a 10‑part mini‑series featuring aviation sustainability expert Dr. Paul Hodgson, who methodically dismantles the top ten excuses airlines lean on to justify doing nothing about contrails. From “the s...
🔥 Which metaphor helps people envision contrails? ✈️ ☁️
Charlie digs a hole in Ocean Beach, San Francisco, under the “heat traps” being formed over the Pacific Ocean.
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