The Paris Agreement on climate change entered into force in November 2016, with a goal of limiting global warming to below 2, preferably to 1.5 degrees Celsius – compared to pre-industrial levels. According to the International Energy Agency (IEA), CO2 emissions from aviation in 2019 equated to around 2.8% of global CO2 emissions from fossil fuel combustion. So, it’s probably no great surprise that there has been much research in recent years on ways to reduce the carbon footprint of the aviation sector.
The majority of “clean tech” innovations of recent years have focussed on reducing greenhouse gas emissions or producing carbon neutral energy. Carbon Dioxide Removal (CDR) technologies relate to methods of removing CO2 from the atmosphere permanently, by returning captured CO2 to the geosphere. Innovation in CDR technologies, and therefore patent applications relating to this technology, are set to rapidly increase.