This is the 1583rd most frequent Russian word.
снижению
"Reduction" or "decline."
The word 'снижению' is used in the dative case as an objective within the context of the actions being aimed at reduction.
Меры направлены на снижению уровня загрязнения воздуха.
Measures are aimed at reducing the level of air pollution.
Here, 'снижению' is in the dative case, indicating the result affected by contributing factors.
Снижению температуры способствовали погодные условия.
Weather conditions contributed to the decrease in temperature.
In this context, 'снижению' is used in the dative case as the focus or the matter to which the attention is directed.