...Air temperature changes until now (click here)

Generally, there is no significant overall trend of mean annual air temperature in Bulgaria for the 20th century (6). Warming is observed, however, from the middle of 1980s. In fact, since 1997 all annual temperature anomalies are positive. 2007 was the warmest year recorded during the period of measurements in Bulgaria: temperature was 1.6⁰C above the average over the period 1961-1990. The years 1994, 2000, 2002 and 2009 were among the warmest years on record in Bulgaria (2).

In the eastern Mediterranean, the intensity, length and number of heat waves have increased by a factor of six to eight since the 1960s (9).

Precipitation changes until now

Annual precipitation varied considerably from year to year in the 20th century (6). Climate in Bulgaria became drier at the end of the 20th century. During the last decade however, precipitation totals have increased. Heavy rains caused severe floods damaging various socioeconomic sectors (2)....