One Finite Planet


Sometimes when exploring a topic, I am surprised by what I find. Other times, it is a story that already surprises that triggers my exploration. This page lists pages across all topics flagged as a surprise, and almost every topic on this site has at least one surprise.

1.5°C by 2026? Already +1.25°C in 2021: What You Are Not Being Told Other Than By Greta Thunberg et al., And Why Not.

I started out wondering how much temperatures have risen so far, what is the best estimate for when will reach +1.5°C , and how bad is +1.5°C anyway. I expected that finding the first two answers would be easy, but it was not. I found the answers, and why they were not easy to find.

I found that with warming at +1.0 in Paris in 2015, +1.5 logically seemed 50 years away, but in 2021 just 6 years later, we are halfway there at +1.25°C. Much changed during the Covid-19 distraction, and at this rate +1.5°C is set to be here by 2026, not the 2050 predicted at Paris.

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Optimum Population: nature’s birth control.

What controls population in nature? Why is overpopulation rare? Predation and resource constraint are commonly suggested answers, but in practice these alone would result in repeated huge population swings.

Human birth rates are falling at a rate that has some fearing population collapse, but is there reason for alarm, or might this be a natural response to the threat of overpopulation?

Determining whether our future is population one of continued growth, collapse, or stability, almost certain requires understanding lessons from nature and examining how they apply to us.

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We can’t run out of fossil fuels.

In the 1970s, there were the ‘Oil Crises‘. Then, and at other times it has been suggested that one key reason for moving to renewables, is that as there is only a finite supply of fossil fuels which will come to an end one day. But when?

There is also a mistaken belief that ‘peak oil‘ projections are a result of supplies of fossil fuels becoming exhausted.

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Earth, The Sun and CO2: What really determines our climate?

There is a myth that ‘there is always climate change’, but the reality is. climate on the Earth has been remarkable stable. While Mars and Venus have changed by hundreds of degrees, yet remarkably, and despite our Sun getting 45% hotter since the planet was born, temperatures on Earth have changed very little.

Understanding how Earth has maintained a relatively stable temperature, is key to understanding climate on Earth.

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Peak Child: When, and what does it mean?

Globally, the when is now. Although locally, experiences differ by location.

Data now clearly confirms that globally, the world has returned to ‘peak child’, a precursor to a likely return to peak population, and the end of three centuries of a population explosion.

Reaching peak child again means we could either return to the previous trend of barely noticeable at the time population growth, to become a mature species, and exist in balance with nature and other living things. Perhaps even stop displacing other species?

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Peak Population 2055: Really? That soon?

Is it realistic that Earth could reach peak population by 2055, there really the largest number of under 35s on Earth there will ever be? Peak newborns already? What is the reality, and what are the implications?

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Surprising Topics