The AIM Network

A Fragmented Review of Climate Change

Image from scientificamerican.com

By Keith Antonysen

Munich Re which underwrites insurance companies has indicated that 2017’s high costs for climate change are the “new normal”. It could be regarded as merely an argument to increase premiums; except, a number of climate parameters suggest otherwise. Carbon Brief provides a summation of situations which have progressed over time:

The significance of the Arctic, Antarctica and oceans are that they virtually act as a thermostat influencing global temperature

Oceans warming is causing coral reefs to be severely damaged, dead spots  are beginning to form in Oceans, a slight decrease in ocean oxygen production, a slight slowing down of the AMOC (Gulf Stream), and phytoplanton dying; these are matters of huge concern.

The cryosphere also presents huge concerns … thawing of permafrost, release of methane and CO2, has an influence on climate generally. The Siberian continental shelf and tundra have a huge potential to release copious amounts of CO2 and methane. The clathrate explosion scenario is a remote possibility; though, we have already had explosions of pingos in Siberia. Arctic sea ice is in poor condition with the bulk of multi year ice having been lost and about 80% of volume having  gone since 1980. Arctic sea ice could be lost within two years, a somewhat remote possibility; but, being lost in ten plus/minus years is a real possibility (follow the maths); regardless, the situation is not good.

Attribution has been an area scientists have been researching lately, the terrible hurricanes experienced in 2017 have the finger print of climate change though not caused by climate change.

California has had wild fires in winter.

With continuing use of fossil fuels more aerosols are pushed into the atmosphere; ironically, once fossil fuels are no longer used aerosols will dissipate and the atmosphere will warm initially.

A number of hyperlinks have been provided which give only an extremely small fragment of information in relation to climate change, thousands of papers are published in reputable science journals each year.

Climate change is already having an impact on individuals, communities and countries through extreme storms, drought, and huge wildfires. The dollar costs of climate change are increasing, hardly a legacy to pass onto younger people.

 

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