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to global CO2 levels. As a result, the 2018 annual average carbon dioxide concentration at Mauna Loa is forecast to be 408.9 ± 0.6 ppm. Increases in observed CO2 (about 30% over the Mauna Loa record) are the result of emissions of man-made carbon dioxide into the atmosphere. Not all the emitted CO2

Over the next decade, changes in climate are expected to be due to a combination of anthropogenic changes in atmospheric greenhouse-gas and aerosol concentrations; natural variations in volcanic and solar activity, and natural, unforced internal variability. To predict regional changes

Strong winds/heavy rainfall - 7/8 July 2004 The second half of June and early July 2004 were generally unsettled, with a deep depression passing over England on 23 June. Another depression, coming up from Spain/France, caused high wind speeds and heavy rainfall on 7/8 July. This was followed

respectively. Thus in terms of ACE index the season was indeed the quietest for over a decade. In terms of tropical storm numbers only 2006 has recorded 9 or fewer tropical storms in the last decade (9 storms were recorded in the July to November period 2006). There is good evidence that relatively

results of the NARCCAP multiple regional climate model (RCM) experiments driven by multiple global climate models (GCMs) regarding climate change for seasonal temperature and precipitation over North America. We focus on two major questions: How do the RCM simulated climate changes differ from those

published in 2018 consisting of 28 global climate model simulations. The factsheets and indices data are aimed at users wishing to carry out in-depth analysis of climate model behaviour. The day-to-day or year-to-year variations in large-scale atmospheric circulation conditions over the Atlantic

category with six warnings for rain, four for fog and one each for ice and thunderstorms. No storms were named by the Met Office’s storm naming group during meteorological spring. A lack of rain became the main ‘impact’ from the weather over the course of the season, with just 56% of the average amount

system is currently experiencing is different in several key ways. Show slide 2. Tell the group that since the beginning of the Industrial Revolution, the average temperature of the planet has risen by just over 1 °C. This might not sound very much, but this is a rapid change in terms of our global

. Rainfall was 48% of average, and most notably well below average over most of England and Wales with less than 10% of average in some southern counties: for England it was provisionally the third driest June in a series from 1910. Sunshine was 142% of average, and with the exceptions of a few eastern

less mild. Overall, rainfall was 84% of average and sunshine was 93% of average. It was much drier than average near north-east coasts, but rainfall was mostly near or above normal in western Scotland, north-west England and Northern Ireland. Sunshine was above normal over northern Scotland (except