Western monarch butterflies overwintering in California dropped by 30% last year, researchers say
The number of western monarch butterflies overwintering in California dropped by 30% last year.
The decline in population is likely due to wet weather and habitat destruction caused by housing construction, pesticide use, and climate change. [ more ]
Western monarch butterflies overwintering in California dropped by 30% last year, researchers say
The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to heavy rainfall.
The destruction of milkweed habitat, increased pesticide use, and climate change are all contributing to the decline of western monarch butterfly populations. [ more ]
The Global Gender Divide We Really Should Be Talking About
South Korea's plummeting fertility rate could lead to a significant population decline in just one generation.
There is a noticeable political gap between young men and women in South Korea and other advanced economies, leading to potential societal consequences. [ more ]
South Korea has experienced significant population decline, with birthrates falling below replacement level and reaching just 0.7 births per woman.
The low birthrate in South Korea may not be a long-term trend, as human adaptability and the potential for populations to model a higher-fertility future could lead to a rebound in birthrates. [ more ]
China's population is declining, with projections indicating a decrease to around 770 million by 2100, leading to concerns about economic growth and aged care. However, this decline could present opportunities for a stable and prosperous future. [ more ]
New York City's population decreased by nearly 78,000 in 2023, partially due to underestimation of migrants. The city has lost over 550,000 residents since April 2020. [ more ]
COMPARE: Where in Europe now has the lowest birth rate?
Birth rates in Europe dropped significantly since the 1960s, with only 3.88 million babies born in 2022. France had the highest birth rate in 2022 at 1.79 live births per woman. [ more ]
Column: Shohei Ohtani is just the latest young person to leave O.C. for L.A. Surprise, surprise.
Shohei Ohtani's move to the Los Angeles Dodgers indicates a trend of young and talented people leaving Orange County for opportunities in larger cities.
Orange County is experiencing a decline in population and an increase in median age, signaling a potential problem for the region. [ more ]