evidence: The Report notes that, since 1980, greenhouse gas emissions have doubled, raising average global temperatures by at least 0.7 degrees Celsius – with climate change already impacting nature from the level of ecosystems to that of genetics – impacts expected to increase over the coming decades, in some cases surpassing the impact of land and sea use change and other drivers. [...] - 105%: increase in global human population (from 3.7 to 7.6 billion) since 1970 unevenly across countries and regions - 50 times higher: per capita GDP in developed vs. least developed countries - >2,500: conflicts over fossil fuels, water, food and land currently occurring worldwide - >1,000: environmental activists and journalists killed between 2002 and 2013 [...] Climate Change - 1 degree Celsius: average global temperature difference in 2017 compared to pre-industrial levels, rising +/-0.2 (+/-0.1) degrees Celsius per decade - >3 mm: annual average global sea level rise over the past two decades - 16-21 cm: rise in global average sea level since 1900 - 100% increase since 1980 in greenhouse gas emissions, raising average global temperature by at least 0.7 degree - 40%: rise in carbon footprint of tourism (to 4.5Gt of carbon dioxide) from 2009 to 2013 - 8%: of total greenhouse gas emissions are from transport and food consumption related to tourism - 5%: estimated fraction of species at risk of extinction from 2°C warming alone, rising to 16% at 4.3°C warming - Even for global warming of 1.5 to 2 degrees, the majority of terrestrial species ranges are projected to shrink profoundly.