Improvements in characterizing global interannual variation and trend in global heat flux.
Yes there probably is an upward trend. There is substantial uncertainty in the vertical axis offset, though it probably is warming.
And yes, El Nino years are cooling years. Does this surprise you?
Allan, R. P., C. Liu, N. G. Loeb, M. D. Palmer, M. Roberts, D. Smith, and P.-L. Vidale (2014), Changes in global net radiative imbalance 1985–2012, Geophys. Res. Lett., 41