State of the Climate in 2018 report shows accelerating climate change impacts
The physical signs and socio-economic impacts of climate change are accelerating as record greenhouse gas concentrations drive global temperatures towards increasingly dangerous levels, according to a new report from the World Meteorological Organization.
The WMO Statement on the State of the Global Climate in 2018, its 25th anniversary edition, highlights record sea level rise, as well as exceptionally high land and ocean temperatures over the past four years. This warming trend has lasted since the start of this century and is expected to continue.
These key climate change indicators are becoming more pronounced. Carbon dioxide levels, which were at 357.0 parts per million when the statement was first published in 1994, keep rising – to 405.5 parts per million in 2017. For 2018 and 2019, greenhouse gas concentrations are expected to increase further.
The WMO climate statement includes input from national meteorological and hydrological services, an extensive community of scientific experts, and United Nations agencies. It details climate related risks and impacts on human health and welfare, migration and displacement, food security, the environment and ocean and land-based ecosystems. It also catalogues extreme weather around the world.
“The data released in this report give cause for great concern. The past four years were the warmest on record, with the global average surface temperature in 2018 approximately 1°C above the pre-industrial baseline,” UN Secretary General António Guterres wrote in the report. “There is no longer any time for delay”.
“It is one of my priorities as the President of the General Assembly to highlight the impacts of climate change on achieving the sustainable development goals and the need for a holistic understanding of the socio-economic consequences of increasingly intense extreme weather on countries around the world. This current WMO report will make an important contribution to our combined International action to focus attention on this problem,’’ said UN General Assembly President María Fernanda Espinosa Garcés.