Sea ice cover in the Southern Hemisphere is extremely variable, from summer to winter and from millennium to millennium, according to a University of Maine-led study. Overall, sea ice has been on the rise for about 10,000 years, but with some.
This article has been updated.
A few sentences have shaken a century of science.
A week ago, more than a year after the World Health Organization declared that we face a pandemic, a page on its website titled “Coronavirus Disease (Covid-19): How Is It Transmitted?” got a seemingly small update.
The agency’s response to that question had been that “current evidence suggests that the main way the virus spreads is by respiratory droplets” which are expelled from the mouth and quickly fall to the ground “among people who are in close contact with each other.”
The revised response still emphasizes transmission in close contact but now says it may be via aerosols smaller respiratory particles that can float as well as droplets. It also adds a reason the virus can also be transmitted “in poorly ventilated and/or crowded indoor settings,” saying this is because “aerosols remain suspended in the air or travel farther than 1 meter.”
Published May 7, 2021 at 8:58 AM MDT
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In some parts of the Mountain West like Nevada, New Mexico and Wyoming, teen pregnancy rates are higher than average, according to the Centers for Disease Control and Prevention. New research from the University of Colorado Boulder finds that when access to contraceptives goes up, the percentage of girls who drop out of high school goes down. This story and more in the Friday morning news brief.
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Utah’s Racial And Gender Disparities
Addressing racial and gender disparities in Utah has become a major focus for state leaders over the last year following protests and in light of the pandemic. Now, they’ll have a report to better guide future policies. Released Thursday by the Kem C. Gardner Policy Institute, it outlines significant disparities in economic, education, health and housing outcomes. In general, it found Utah’s minority populations with some exceptions are mo
Study Sheds More Light on Overall Sea Ice Changes in Southern Hemisphere
Written by AZoCleantechMay 6 2021
According to a new study, headed by the University of Maine, sea ice cover formed in the Southern Hemisphere is highly variable, from winter to summer periods and from one millennium to the next. On the whole, sea ice has been rising for around 10,000 years but with certain exceptions to this pattern.
Sea ice pressure ridge off the Antarctic coast. Image Credit: University of Maine.
Dominic Winski, a research assistant professor from the Climate Change Institute at the University of Maine, led a study that investigated the chemistry of a 54,000-year-old South Pole ice core and subsequently revealed new data about the variability of sea ice over the centuries, specifically across seasons, in the Southern Hemisphere.