You may have heard in the media about climate tipping points. The IPCC (International Panel on Climate change) has defined it as “abrupt and irreversible changes to the climate system”. Our climate is changing quickly compared to past events because of human activity — output of greenhouse gases leading to…

Originally published in 2019, updated November 2021

1. THE GOOD NEWS is that renewable energy is becoming cheaper at a fast pace.

Solar panel prices have dropped in price 18% per annum, and sales have grown 39% per annum since 2010. Wind turbine prices have dropped 9% per annum and sales have grown 17% per annum since 2010.

Renewable energy has already caused major changes…

Originally published in 2019, updated November 2021

1. What are the consequences of a 2 degree C rise, or more? These seem small amounts; why are they considered serious?

Though they seem to be small compared to the variations we see at different times of the year, these are average temperatures and only small changes can make a difference. Current average temperature rise compared to pre-industrial times is about 1 degree. A…

Bill Woinarski’s Climate Science Basics

Human induced global warming happening very quickly after about 10,000 years of relative stability. Here’s the science behind it and why we should be concerned.

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