We burn a lot of carbon – like petrol, diesel, coal and gas for our energy needs. This makes huge amounts of carbon dioxide (CO2) – 36 billion tonnes in 2013. Half of this CO2 dissolves in the oceans, just like we make our fizzy soft drinks. A small part of it generates Hydrogen ions (H+) – Hydrogen atom minus the electron. The concentration of H+ in oceans has gone up by 30% in last 250 years of industry. This increased concentration of H+ is killing creatures like sea snails. The impact will be on bigger animals in sea and land, including us.
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