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194 contents match your search.
Publish Date: 10 May 2021
A new World Meteorological Organization bulletin on Aerosols examines the impact of biomass burning (wildfires and open burning for agriculture) on climate and air quality. It covers the episodes of the 2019/2020 Australian bushfires, the 2015 Indonesia peatfires and smoke transport from boreal forest fires to the Arctic.
Publish Date: 7 May 2021
A Global Methane Assessment released by the Climate and Clean Air Coalition (CCAC) and the United Nations Environment Programme (UNEP) shows that human-caused methane emissions can be reduced by up to 45 per cent this decade.
When it comes to the weather and climate, most of us think only about what is happening in the atmosphere. If we ignore the ocean, however, we miss a big piece of the picture: covering some 70% of the Earth’s surface, the ocean is a major driver of the world’s weather and climate.
The impact of aerosols on the atmosphere is widely acknowledged as one of the most significant and uncertain aspects of climate change projections. The observed global warming trend is considerably less than expected from the increase in greenhouse gases, and much of the difference can be explained by aerosol effects. Aerosols impact climate through direct scattering and absorption of incoming solar radiation and trapping of outgoing long-wave radiation as well as through alteration of cloud optical properties and the formation of clouds and precipitation.
Publish Date: 11 March 2021
The tenth anniversary of the earthquake, Tsunami and nuclear accident in Japan is being marked by ceremonies to mourn the victims and reflection on lessons learned, including stronger multi-hazard early warning systems and environmental emergency response coordination, to prevent a future tragedy.
Publish Date: 2 February 2021
A new era of sailing for science is beginning, with support for vital ocean observations from the high-profile round-the-world Vendée Globe yacht race. The first of the IMOCA skippers crossed the finishing line at the end of January, after braving equipment failure and stormy conditions. Ten of them took with them scientific instruments including either drifting buoys that gather climatological information or Argo floats that analyse sea water. During the race they deployed all the drifting buoys and almost all the Argo floats at agreed co-ordinates in the Atlantic.
Water stress, water-related hazards and water quality pose increasing challenges to modern society. And yet, the capacity to monitor and manage this vital resource is fragmented and inadequate. Billions of people around the world also feel the impact of climate change through water.