Global warming hiatus Global warming hiatus A global warming hiatus, also sometimes referred to as a global warming pause or a global warming slowdown, is a period of relatively little change in globally averaged surface temperatures. In the current episode of global warming many such 15-year periods appear in the surface temperature record, along with robust evidence of the long-term warming trend. Such a "hiatus" is shorter than the 30-year periods that climate is classically averaged over. Publicity has surrounded claims of a global warming hiatus during the period 1998–2013. The exceptionally warm El Niño year of 1998 was an outlier from the
Program of Activities to as "CDM Programme Activities" or CPAs) that are eligible for inclusion in the PoA. Whereas stand-alone CDM projects must be approved individually by the CDM Executive Board, a PoA needs to be registered only once by the CDM Executive Board. After that, it can include an unlimited and unspecified number of individual CPAs without recourse to the CDM Executive Board. Projects that distribute compact fluorescent lamps, efficient cook-stoves, Building refurbishment or solar water heaters, are some examples where PoAs, as defined by CDM, can be used. The modality is also applicable for larger scale activities such as small hydro