Exposing the Elephant: Exponential Population Growth

Exponential Global Population Growth: Exposing Elephants in the Room:  A



A city of 240,000 people. This is roughly the number of extra people appearing on Earth each day
(births minus deaths). We just passed 7.5 billion, which is amazingly about 6% of all the people who have ever lived on Earth.

Our global population continues growing exponentially each year. The UN projects 8 billion by 2025, 9 billion by 2040 & 10 billion by 2050. BUT they ignore abrupt climate change.
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Exponential Global Population Growth & “The Great Acceleration”: B // Published on Aug 3, 2017

To determine the overall IMPACT of human activity on our planet, we multiply global POPULATION by AFFLUENCE by TECHNOLOGY (IPAT; I = P x A x T).

Unfortunately for us, Population is growing exponentially, while Affluence (with rampant consumerism) as well as Technology are also growing nearly exponentially.  Thus IMPACT is skyrocketing, with no regions of our planet left untouched. This has been described as “The Great Acceleration“.
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How Global Warming Increases Metabolism, Thus Decreases Lifespans.  // Published on Aug 3, 2017

Increase global average temperature by 2 C (3.6 F) and the Metabolic Rate (Energy Burn; Pace-of-Life;…) increases 20-30%. Since there is a fixed number of heartbeats in a lifetime (1 or 2 billion heartbeats); a faster pace-of-life means a shorter lifespan, unless the organism can migrate to a cooler region.

Understanding how all life connects via nonlinear size scaling is crucial to know how life processes like growth, health, and longevity are affected by abrupt climate change.
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About paulbeckwith

Well known climate science educator; Part-time Geography professor (climatology, oceanography, environmental issues), University of Ottawa. Physicist. Engineer. Master's Degree in Science in Laser Optics, Bachelors of Engineering, in Engineering Physics. Won Association of Professional Engineers of Ontario gold medal. Also interested in investment and start-ups in climate solutions, renewable energy and energy efficiency. Avid chess player, and likes restoring old homes. Married with children.
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