Need to Know by Stephen Leahy
Stephen LeahyScience & Insight to Help Navigate this Decade of Change & Consequence
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 172 | Founded | 7 years ago | Last Issue | 19 days ago |
| Active | |||||
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leahy.substack.comLatest Issues
Break free from the fossil-fuel trap
Solar fencing in Germany
Solar, wind, batteries, electric vehicles, and heat pumps offer an affordable escape from the volatile world of fossil energy.
Jet fuel prices have increased by 70%, gasoline prices by 30% to 40%, and wholesale ga...
How you can save $1,777 on transportation costs
Replacing 1 in 5 of your car trips with walking, biking, or public transit would save an average of US $1,777 per year, according to RMI’s Smarter Mobility Calculator.
Need-to-Know: The less you drive, the more you save.
The average...
Be warned: A Super El Niño is coming
Source: SEVERE WEATHER EUROPE
We’re in the cool phase (La Niña) of the ENSO cycle* that will end over the next couple of months. La Niña was supposed to cool global temperatures, but 2025 turned out to be the second- or third-hottest year...
Pensions and Investments Dangerously at Risk
Report cover: Planetary Solvency Source: University of Exeter
If you have a pension or investments or hope to have either, here’s an important Need-to-Know:
The economic models and forecasts that governments, banks, pension funds, and in...
Micro And Nanoplastic Particles Are Disrupting Our Gut Microbiomes
Yes, those are plastic bottles. Source: VonWong Photography www.vongwong.com
There is no precedent for continuous uptake of foreign particles into the human body that does not result in some adverse health effects.
— Rolf Halden, Director...
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The writers behind this newsletter.
Award-winning Environmental Journalist and Author
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