מה עומד מאחורי סיפור ההתחממות שמעצב את העולם?

איל לוינטר | 12 בנובמבר 2019 | גיאו-פוליטיקה | 20 דק׳

התחום האפור של ההתחממות הגלובלית

ב-7 באוקטובר 1912 נודע לעולם שעליו להתכונן לקטסטרופה. עיתון הלוס אנג'לס טיימס הזהיר את קוראיו כי כדור הארץ נכנס לתקופה של התקררות גלובלית: "עידן קרח חמישי מגיע: המין האנושי יצטרך להילחם על הישרדותו בקור". כ-11 שנים חלפו וב-9 באוגוסט 1923 הוסיף עיתון השיקגו טריבון בכתבת שער: "מדענים אומרים כי קרח ארקטי ימחה את קנדה".

אבל הקטסטרופה מיאנה להגיע. עברו עשורים והקרח לא היכה באמריקה, גם לא באסיה או באירופה. אולם התחזית נותרה כשהייתה. ביולי 1971 פרסם מגזין Science המוערך מאמר שהזהיר מפני עידן קרח מתקרב: "אם זה יימשך לאורך מספר שנים, ירידה כזו בטמפרטורות בכל כדור הארץ עשויה להיות מספיקה כדי לעורר עידן קרח"^[1]. ביוני 1974 הצטרף אליו מגזין "טיים": "כשמטאורולוגים מודדים את הטמפרטורות הממוצעות מסביב לעולם, הם מוצאים שהאטמוספירה התקררה בהדרגתיות בשלושת העשורים האחרונים [...] הסטיות שהם חוקרים במזג האוויר עשויות להיות הכרוז לעידן קרח נוסף"^[2]. באפריל 1975 יצא העיתון המכובד Newsweek עם הכותרת "העולם המתקרר" (The Cooling World)^[3].

רוצה לקרוא עוד?

להמשך קריאה הירשמו או התחברו

תמונה: Shutterstock

תמונה: Shutterstock

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הירשמו לניוזלטר שלנו וקבלו תוכן חדש למייל מדי חודש

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