Flexible electronics has become
the subject of active research in recent times.
However, the total influence on monsoon precipitation of temporally varying direct and indirect effects of various aerosol species is still not resolved and
the subject of active research.
These and other potential connections between a warming Arctic and mid-latitude weather are
the subject of active research.
These forcings are not yet well understood and are
the subject of active research (Cox et al, 2000; Betts, 2001; Friedlingstein et al., 2001).
These linkages are
the subject of active research.