Sentences with phrase «decreasing over the past few decades»

Air pollution has decreased over the past few decades, but residents still may be dealing with the lasting effects on their health.

There are signs, however, that the ocean's capacity to sequester atmospheric carbon dioxide has been decreasing over the past few decades, says climate scientist Samuel Jaccard of ETH Zurich in Switzerland.

So while racial residential segregation has been decreasing over the past few decades, it still remains high, and very little of it can be explained by racial differences in income levels.

Not exact matches

In fact I believe that over the past few decades school lunches have actually decreased in quality when I compare what I ate as a student to what is eaten at the school in which I work.

The research finds that, over the past few decades, large areas of forest and savannah have been converted to cropland, meaning that the overall area that could be burned by wildfires has decreased.

While the digital age has given children more ways than ever before to connect with others, many researchers are concerned with how social networking and decreased face - to - face relationships may have contributed to a 48 percent drop in empathetic concern for others over the past few decades.

These trends may reflect decreasing enrollment in teacher preparation programs over the past few years as well as high rates of attrition among teachers within their first five years.4 5 Turnover rates for new teachers have risen for the last two decades.

[1] The mid - to late snow season is precisely when significant loss of snow pack is seen at nearly all locations over the past few decades, both through decreases in snow accumulation and increases in snow melt.