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<jats:p> Our study on the exact timing and the potential climatic, environmental, and evolutionary consequences of the Laschamps Geomagnetic Excursion has generated the hypothesis that geomagnetism represents an unrecognized driver in environmental and evolutionary change. It is important for this hypothesis to be tested with new data, and encouragingly, none of the studies presented by Picin <jats:italic>et al</jats:italic> . undermine our model. </jats:p>

<jats:p> Cooper <jats:italic>et al</jats:italic> . (Research Articles, 19 February 2021, p. 811) propose that the Laschamps geomagnetic inversion ~42,000 years ago drove global climatic shifts, causing major behavioral changes within prehistoric groups, as well as events of human and megafaunal extinction. Other scientific studies indicate that this proposition is unproven from the current archaeological, paleoanthropological, and genetic records. </jats:p>

<jats:p> Cooper <jats:italic>et al</jats:italic> . (Research Articles, 19 February 2021, p. 811) propose that a weakening geomagnetic field prior to the Laschamps Excursion explains megafaunal extinctions and human cultural changes that they claim happened 42,000 years ago. However, these authors misrepresent both the data and interpretations of cited work on extinctions and human cultural changes, so the specific claims they make about extinctions and cultural changes are false. </jats:p>

<jats:p>Our paper about the impacts of the Laschamps Geomagnetic Excursion 42,000 years ago has provoked considerable scientific and public interest, particularly in the so-called Adams Event associated with the initial transition of the magnetic poles. Although we welcome the opportunity to discuss our new ideas, Hawks’ assertions of misrepresentation are especially disappointing given his limited examination of the material.</jats:p>

<jats:p>Earlier this month, the US Centers for Disease Control and Prevention (CDC) recommended Pfizer’s COVID-19 messenger RNA (mRNA) vaccine for children between 5 and 11 years of age—that’s 28 million children. Yet surveys show that 42 to 66% of parents of these children are reluctant or opposed to seeking this protection. Without vaccination, it is likely that almost everyone—including young children—will be infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at some point in their lives. So, the question for parents and caregivers is: Which is worse, vaccination or natural infection?</jats:p>

<jats:p>Record Arctic ozone loss linked to Siberian wildfires</jats:p>

<jats:p>After devastating epidemic, Europe launches new efforts to save one of the world’s largest bivalves</jats:p>

<jats:p>Government aims to increase immunity further before relaxing controls and trying to live with the virus</jats:p>