Abstract:
This study aimed to assess the impact of climate change on sustainable water supply in
Tanzania. The study employed a quantitative research approach and a descriptive
research design. The study's observations of 144 and non-probability purposive sampling
were employed. The study used the ordinary least squares (OLS) regression model to
generate the coefficients. The results showed that temperature had a negative influence
on sustainable water supply and were statistically significant at the 5% level. This
implies that, with a one-unit increase in temperature, sustainable water supply was
expected to decline by 97.3 units while holding all other variables constant (p<0.038).
However, evaporation had a negative influence on sustainable water supply and was
statistically significant at 1%, implying that for every one unit increase in evaporation,
the sustainable water supply was expected to decrease by 1415.5 units while holding all
other variables constant (p<0.000). The rainfall had a negative effect on sustainable
water supply and was statistically significant at the 1% level, which means that for every
one unit increase in rainfall, the sustainable water supply was expected to decline by
1.75 units while holding all other variables constant (p<0.003). The study concludes that
water resource management can mitigate the effects of climate change. The study
recommends that the RUWASA management should strive to harvest water rainfall in
order to have water during the drought periods while keeping water treatment facilities
readily available to enhance water quality.
