Temperature [3 DOWN] for 2016 shows it is likely to have edged ahead of 2015 as the world’s [4 DOWN] year.
Data from Nasa and the UK Met Office shows temperatures were about 0.07 degrees Celsius above the 2015 mark.
[14 ACROSS] the Met Office increase was within the margin of [8 ACROSS], Nasa says that 2016 was the third [12 DOWN] in a row to break the record.
The El Niño weather phenomenon played a [5 DOWN], say scientists, but the main [11 ACROSS] was human emissions of CO2.
The latest conclusions won’t come as much of a shock to observers, as the likely outcome was trailed heavily towards the [20 ACROSS] of last year.
So warm was the early part of 2016 – influenced by a powerful El Niño – that some leading climate scientists were predicting as early as May that a new record was probable.
During an El Niño, a band of unusually warm ocean [4 ACROSS] develops in parts of the Pacific. The phenomenon affects the climate globally, disrupting [6 ACROSS] patterns.
According to Nasa [11 DOWN], 2016 is now the warmest year in a record that dates [10 DOWN] to 1880.
“2015 has [19 ACROSS] the warmest year on record up [17 ACROSS] now, so 2016 has just beaten that and it’s beaten that by about 0.1-0.12 of a [7 DOWN] Celsius, which doesn’t seem like a [18 DOWN], but in terms of the year-to-year variations it’s actually [16 DOWN],” Dr Gavin Schmidt from Nasa [2 ACROSS] BBC News.
Another factor that has affected temperatures in 2016 is the unusual [6 DOWN] in the Arctic.
The sea-ice covering the Arctic reached its second lowest level (in terms of extent) in September 2016. The sea-ice grows in autumn and winter and shrinks each spring and [1 DOWN].
While the sea-ice extent last year didn’t break the record, the mercury stayed high and the smaller amount of [9 ACROSS] now present in the region is at unprecedented levels for the [15 DOWN] of year.
SOURCE: BBC News