The hottest Climate Risk Substack posts right now

And their main takeaways
Category
Top Climate & Environment Topics
The Honest Broker Newsletter • 2070 implied HN points • 22 Dec 25
  1. The financial world reframed climate change as “climate risk” by tying it to extreme weather, but real-world trends in most extremes are unclear and rising disaster losses are mainly due to more people and assets in harm’s way.
  2. Framing risks as both physical and transition hazards gave finance a powerful, self-justifying way to push a global shift toward low‑carbon outcomes, and that pressure spread rapidly through businesses and governments with little consequence for exaggeration.
  3. Methods to quantify climate risk—scenario analyses and new proprietary models—are deeply flawed or outdated, yet regulatory demand created a large market for these unreliable products, so required disclosures tend to produce the very risks they claim to measure.
Common Sense with Bari Weiss • 449 implied HN points • 03 Feb 26
  1. The Fed has drifted into topics like climate change and social policy, publishing research and public messages beyond its traditional focus on inflation and banking.
  2. That mission creep triggered public backlash and raised concerns among staff and observers that the central bank is becoming politicized.
  3. A new chair should refocus the Fed on core monetary policy and avoid advocacy on issues like climate or childcare, but pulling it back to that lane will be a difficult task.
OK Doomer • 265 implied HN points • 11 Feb 26
  1. Blackouts are becoming far more likely as data center growth, heatwaves, and storms strain the grid, so planning for outages now is important.
  2. If someone in your household relies on power for medical devices or heat/cooling, focus on a backup system that powers critical loads only, not the whole house.
  3. Don’t trust cheap DIY kits or affiliate hype — work with a professional installer who can choose reliable equipment, provide warranties, and safely size the system.
The VC Corner • 419 implied HN points • 07 Apr 24
  1. The EU and US are collaborating to create guidelines for artificial intelligence, helping to ensure safe and fair use of technology. Working together can lead to better standards and regulations for AI.
  2. YC's Secret SAFE is a financial tool that helps founders raise money more easily and efficiently. This simple agreement can speed up fundraising and make it more accessible for startups.
  3. The climate risk landscape is becoming increasingly important as companies assess their impact on the environment. Understanding these risks can help businesses make better decisions for the future.
Gad’s Newsletter • 23 implied HN points • 09 Feb 26
  1. Decades of stagnant domestic production, heavy reliance on imported "swing" supplies, and just-in-time, low-bid municipal procurement created a brittle salt supply chain that predictably fails in severe winters.
  2. Salt has a hard thermal limit—below about 15°F it becomes far less effective, so crews often burned through limited stocks during deep freezes, and alternatives like beet‑brine mixes or sand are costly or only partial substitutes.
  3. Widespread road‑salt use creates a long-term environmental and infrastructure debt because chloride persists in groundwater and accelerates corrosion, imposing large future cleanup and repair costs that current procurement ignores.
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Equal Ventures • 19 implied HN points • 03 Oct 22
  1. Insurance startups are exploring opportunities beyond traditional insurance, including tech-enabled solutions and business development pathways.
  2. After a decline in valuation multiples, the interest in mergers and acquisitions (M&A) within the insurance industry is resurging.
  3. Focusing on climate risk is becoming a key priority for insurers, leading to changes in underwriting approaches and investment in climate-related initiatives.
The Snap Forward • 0 implied HN points • 05 Dec 25
  1. Buyers should be aware that houses in risky climate areas can lose value. Knowing the risks before buying a home is important to avoid losing money later.
  2. Suppressing information about climate risks can hurt future homebuyers. It's like hiding problems with a car that you’re selling; it's unfair and might even be seen as fraud.
  3. People need to be proactive in understanding climate risks when buying homes. Local conditions and governance can impact safety and property value, so do your research.
The Snap Forward • 0 implied HN points • 17 Jan 24
  1. Economists are focusing on assessing the economic risks posed by the planetary crisis.
  2. The Biden Administration has released a memo addressing near-term macroeconomic and financial climate risks.
  3. The memo suggests accounting for extreme event risks, transitional dynamics, and effects on particular income groups.
Callaway Climate Insights • 0 implied HN points • 06 Feb 24
  1. Amazon included a section on climate risk in its 2023 annual filing, recognizing potential impacts like higher costs and changing customer demand patterns.
  2. Corporate climate risk disclosure is growing despite political opposition, with more companies outside traditional industries adapting climate change wording.
  3. Large public companies are taking proactive steps to warn investors about climate risks, recognizing that climate risk is investment risk.
The Snap Forward • 0 implied HN points • 06 Apr 23
  1. The Brittleness Bubble is a significant concern due to overvaluation of assets vulnerable to growing risks brought on by the planetary crisis.
  2. Local governments may face budget shortfalls and new costs due to property devaluations caused by climate vulnerabilities.
  3. Investments in local ruggedization efforts and new value creation are crucial to mitigate future financial turmoil and increase sustainable prosperity.
The Parlour • 0 implied HN points • 04 Dec 25
  1. Open-source satellite imagery can be used to create a global census of residential buildings to better measure climate risk and its impacts on housing and financial stability.
  2. Recent quantitative research is applying remote sensing and data-driven techniques to map built environments and inform climate and risk modeling.
  3. Full articles and curated analyses are often behind a subscription paywall, but short free trials can give temporary access to the full archives.