Paul Hazelden's Articles (109)

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Plastic

Pieces of plastic - everything from whole plastic objects to microscopic sized fragments - have been found in every place on Earth.

Physical Challenges: The Biosphere

The major challenges within the biosphere include loss of biodiversity, mass extinction, species migration, antibiotic resistance and loss of topsoil.

Fission is a very controversial topic: some people think some use of nuclear fission will be essential to plug the hole left by fossil fuels before we manage to scale up renewable energy; others think the costs and the problem of disposal of nuclear

Batteries

Storing electricity is one of the massive challenges we face. There are many projects working on alternatives to our familiar Lithium Ion batteries.

Energy

This is the fundamental practical challenge facing the human race: our civilization depends upon using vast amounts of energy; the way we use energy is changing the climate and destroying the ecosystem which our survival depends upon; and we would ha

Brain Tricks

I think it would be helpful to collect together the mistakes our brains are prone to make.

For a start, here is an excellent short (8 minutes 25 seconds) video about 'The Illusion of Truth': talking about cognitive ease, why it is useful, and how it

Addiction

Few people would disagree that addiction is one of the major problems facing the developed world. But there are many different (and deeply contradictory) ideas about the best way to respond. It is hard even to get people to agree on a definition of

Climate Change

It is clear that the world is undergoing significant, and potentially catastrophic climate change, The average temperature is higher now than at any time in the history of human civilization, and it will continue to the point of mass extinctions unl

Physical Challenges: The Earth

[Back to Physical Challenges]

Introduction

These seem to be the major Issues.

Climate Change
Pollution: both chemicals and plastics - we can find toxic metals in the Himalayan peaks, and plastic fibres in the deepest reaches of the ocean; air pollut

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