The earth is quickly warming due to human activity. Even though prominent world leaders may deny it, there is evidence to support it. Sea levels are rising, ice sheets are melting, more severe weather events are occurring worldwide.
The levels of carbon dioxide in the atmosphere are rising year on year and are currently the highest they've been in 800'000 years.
We continue to release excessive amounts of greenhouse gasses into the atmosphere, trapping the heat of the sun and steadily warming the planet. Any warming will have consequences, and these consequences are not likely to be good.
Currently the human race is trying to keep warming below 2 degrees celsius, preferably under 1.5 degrees. Anything over this will have severe damaging effects on the world population. Drought and famine will hit the world's warmer climates much harder than in Ireland. This will cause displacement of millions of people from their homes, with the world struggling to feed its ever-expanding population.
The earth has already warmed 1 degrees celsius from pre-industrial levels. A further warming of 3 degrees by the end of this century is predicted if we continue at our current rate of CO2 production. Many parts of the planet will become uninhabitable at this point, with irreversible effects.