Infographics based on Mark Lynas’ book ‘Six Degrees’
It’s hard to believe global warming is for real, because the actual warming effects are delayed. Currently, in 2015, it’s one degree celsius warmer compared to 1850. And there’s a lot more warming in the pipeline. In fact, we’re on a straight path to a six degree global temperature rise.
That’s not so bad, you may think. Well, hold on tight.
Why is six degrees of global warming a bad thing?
Many abstractions surround climate change. A ‘two degree target for global temperature rise’ is one of them. Why would more warming be a bad thing? In his book ‘Six Degrees: Our Future on a Hotter Planet’, journalist Mark Lynas describes how living on our planet will change with every degree of warming.
Included in this post is a summary of the most important effects for all six degrees.
OCEAN Increase in hurricane activity due to warmer oceans. Uptake of excess CO2 makes the oceans acidic causing marine life to die-off.
FOREST Deforestation for agriculture, logging and fuel causing more warming. Less trees means less CO2 uptake and burning forest releases more CO2.
PERMAFROST Permafrost, mountain glacier and snowpack melt causing lake drainage and a downstream water supply shortage.
SEA ICE Arctic ice melt cause more warming. Ice reflects 80% of the Sun’s heat whereas dark ocean absorbs 95% of the heat.
DROUGHT Crippling droughts cause crop losses. International food price has to be stabilised, to prevent famines.
FLOODS More warmth leads to more water vapour, leading to more intens rainfall. Monsoon increase in South Asia leads to mass human migration.
FOREST Heatwaves in Europe are common. Forest fires occur as far north as the Baltic coast.
PERMAFROST Melt rate doubles, soil starts to release carbon. Greenland is on its way to melt completely causing sea level rise of 7 metres (takes 140 years).
SEA LEVEL Storm surges and sea level rise (expansion of warmer oceans, melted ice sheets) affects the homes of millions as the sea invades low lying cities.
DROUGHT Parts of Africa and Australia are beyond human adaptation. Drought will be permanent in the sub-tropics and Central America.
MANKIND Population transfers are bigger than anything seen in the history of mankind. Will lead to conflict and international wars.
FOREST Amazon dries out completely. Wild fires in South America cause intense air pollution and heat. The smoke will blot out the sun.
VEGETATION Soil and vegetation start to release C02 rather than absorb it.1/2 plant species Europe become extinct.
HURRICANES Hurricanes start tracking across the Atlantic striking in Europe. Cyclones devastate places as far removed as Texas and Shanghai.
DROUGHT Further international decline in agricultural production due to drought, reduced river flows, lake disappearance and desertification.
MANKIND Collapse of civilisation.
HEAT 70% summer rain fails in Mediterranean, heatwaves last 65 days longer than presently, wildfires occur in the Alps. In the UK summer temperatures reach 45°.
PERMAFROST Permafrost in Siberia melts, releasing a 700% increase in carbon. Even just of 1% permafrost disappearance equals a doubling in present global emissions.
SEA LEVEL With sea levels rising further Mumbai, Shanghai, Boston, New York and London would be inundated to name but a few.
DESERT New deserts in Sind, Indo-china, Korea, Japan and the west Pacific and Pacific Isles, Southern Europe, East Africa and Madagascar and parts of Chile.
MANKIND Humans will herd into shrinking habitable areas. Habitable areas will shrink towards the poles. Massive reduction in the supportable population. billions will die.
HEAT Inland temperatures 10° or more higher than now.
PERMAFROST Antarctica starts to melt. No ice sheets remain.
OCEAN Release of methane hydrates from the ocean floor due to changes in deep ocean temperatures.
MANKIND We are in the realms of dystopia. The human species may survive a 6° temperature rise but it is by no means certain.
HURRICANES The volatility of the climate will see hurricanes throughout the planet of unimaginable ferocity.
SEA LEVEL Sea levels are 20 m higher than current. With Antarctica melting completely, sea levels eventually will be 73 metres higher. Go to map.
Want to know more about sea level rise? Read the article Sea Level Rise: What it is, Why It Matters, and What Can Be Done? by John Hawthorne
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