Positive (or good) effects of wind are pollination of plants, circulation of air (reduction of smog), movement of clouds (making it rain or snow in different regions) and thus helping cleans the air of pollutants.
Negative (or bad) effects of wind are tornadoes, hurricanes, movement of allergens (pollen, mold and such). It also causes waves in lakes and oceans (both good and bad) that can cause flooding and things.
Negative (or bad) effects of wind are tornadoes, hurricanes, movement of allergens (pollen, mold and such). It also causes waves in lakes and oceans (both good and bad) that can cause flooding and things.