The planet's average surface temperature has risen about 1 °C since the late 19th century, a change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere

For a measure of current temperature data, please visit this NASA site

The number or record weather events, including heat waves, drought, cyclones, and flooding have all increased in both frequency and severity. Higher temperatures lead to more dramatic atmospheric swings, impacting many weather and climatic events globally.

When carbon dioxide dissolves in water, it forms carbonic acid. Over the past 150 years, huge volumes of carbon dioxide have been dissolved into the oceans, increasing their acidity by approximately 30%. This has huge impacts upon organisms which live in carbonate structures such as coral, shellfish and crustaceans, as their shells may not properly form or even dissolve in an acidic ocean.

The oceans have absorbed the majority of increases to the planets' heat since the mid-20^th century , with the surface temperature of the ocean having risen approximately 0.5 degrees C over the last 50 years

The volume and mass of ice contained within land based ice sheets has dramatically decreased over the past 100 years, with an estimated 400 billion tons of ice lost per year from the Antarctic and Greenland ice sheets. Importantly, the rate of ice loss has tripled over the past decade.

Sea levels have risen approximately 20cm globally in the last 100 years. The two main drivers have been the addition of water from melting ice and the thermal expansion of the oceans, which increase in volume with increases in temperature.