Well I think we will look to 2018 as a precursor for 2019?
The continued Chinese 'clean up' of their pollution continues to grow and now the Interdecadal Pacific Oscillation is positive ( since 2014) the extra heat reaching the ocean surface now stays at the surface instead of being buried in the ocean as it is under I.P.O. negative....... only another 25yrs of that to come and , I'd guess, a continuation of China cleaning up its act?
So we begin to shed the heat accrued over the noughties in the Pacific whilst the incoming solar stays at the surface to interact with the atmosphere even as more and more solar gets through to the surface as 'dimming' reduces........
That's the Pacific Basin and its part in it all but what of the rest of the globe?
How will Arctic Sea Ice fare this year?
Already both ocean entrances are near ice free and so soaking up the incoming solar. With surface warmth ,under IPO positive, also flowing into the basin from the Bering side how low will our ice go? ( we are still in the return period for the 'Perfect Melt Storm' as well)
Then we have Yamal.
3 years ago ( nearly) over 7,000 'pingo like structures' grew out of the permafrost. We ( I'm sure) have all seen images of the 'blowouts' of such structures back in 2015?
Prof Semiletov ( Shakova and Semiletov?) tells us it is 3 years from formation to eruption so what happens this year across Yamal? If Shakova is correct and there is a huge reserve of 'free methane' capped below the permafrost ice then what if one , or more ,of these structures taps into that reserve?
Yamal is a major natural gas producer and Russia has just committed to year round export from there........do they think they might lose their reserve if they do not act fast?
With the Southern hemisphere posting such a hot summer are we to see a repeat in our hemisphere over the coming months?