Fewer Rainy Days and Earlier Springs Linked in Northern Climates

Mar 30, 2022

By Pam Knox

A recent article from the National Science Foundation describes the result of a study on when new leaves appear on plants in spring by scientists at Ohio State University and published in Nature Climate Change. The study shows that while warmer temperatures are the primary cause of earlier leaf occurrence, the number of days of rain (not the amount of precipitation) also makes a difference, and as the number of rainy days per year has been decreasing in many areas north of 30 degrees latitude, this is also affecting how early the leaves come out. The researchers calculated that a decline in rainfall frequency will lead to spring arriving an additional one to two days earlier each decade through 2100. What would cause this? The researchers think that fewer rainy days means fewer cloudy days, too, and that more sunlight reaching the plants in spring stimulates them to produce leaves earlier in the year.

Source : uga.edu

Video: How American Farmers Harvest 1.15 Billion Pounds of Sunflowers

Across the open plains of North Dakota and South Dakota, sunflower fields turn the American landscape into a sea of gold. In this farming documentary, we go inside modern sunflower farming to see how farmers plant, grow, harvest, clean, dry, process, and transform sunflower seeds into valuable products used every day.

In 2024, American farmers harvested about 1.15 billion pounds of sunflowers. This video follows the full journey from warm spring planting to combine harvesting, seed cleaning, storage, oil extraction, refining, roasting, packaging, and animal feed production.

You will see how sunflower seeds are processed into cooking oil, roasted snacks, bakery ingredients, birdseed, livestock feed, and useful byproducts. From golden fields to modern processing plants, this is the story of how a beautiful flower becomes one of America’s important oilseed crops.

Watch until the end to discover how sunflower farming connects farmers, machines, factories, food production, and sustainable agriculture.