Autorica objašnjava da zagrevanje planete menja ne samo prosečne temperature već i obrasce padavina: topliji vazduh zadržava više vlage pa padavine postaju intenzivnije, dok između pljuskova nastaju duži suvi periodi. To dovodi do većeg rizika od lokalnih poplava i šumskih požara, a topljenje i termičko širenje vode podižu nivo mora. Potrebne su hitne prilagodne mere i plansko delovanje zbog ranjivosti ljudskih sistema.
Toplije temperature, ne toplotni talasi: šta nam poručuje zagrevanje planete
Pulling out a vehicle stuck in flood water on July 28, 2026, in Paterson, New Jersey.
Još 1896. godine švedski naučnik je predvideo da sagorevanje uglja može da zagreje Zemlju. Deceniju kasnije, 1912. godine, časopis Popular Mechanics čak je hvalio industriju zbog dodatnog ugljen-dioksida u atmosferi koji će "doneti blaže povetarke" budućim generacijama. Danas, posle više decenija istraživanja i posmatranja, posledice tog procesa postaju opipljive: toplije zime, intenzivnije padavine, češći sušni periodi i snažniji šumski požari.
Zašto se čini da istovremeno imamo poplave i sušu?
Ključ je u atmosferi i načinu na koji Zemlja "odvodi" višak toplote. Atmosfera raspoređuje energiju, a osnovni mehanizam hlađenja površine je isparavanje: voda upija toplotu i podiže se u atmosferu kao vodena para, gde se hladi i kondenzuje u oblake i kišu. U tom smislu, Zemlja se "hladi znojenjem".
Kada u atmosferu dodamo više ugljen-dioksida, efekat je dvostruk: globalne prosečne temperature rastu, ali postaju i ujednačenije — hladnija mesta i noći se relativno više zagrevaju. Istovremeno, topliji vazduh može da zadrži značajno više vlage (otprilike 6–7% više po svakom stepenу Celzijusa), što pojačava intenzitet padavina kada one nastupe.
Posledice u kraćem i dužem roku
Veći sadržaj vlage u vazduhu i promenjeni obrasci isparavanja dovode do paradoksa: prosečna količina padavina može blago rasti (većina modela pokazuje oko 1–2% po °C zagrevanja), ali između tih padavina ima više i dužih suvih perioda. To znači češće lokalne, intenzivne pljuskove i flash poplave, ali i isušenije zemljište koje pogoduje šumskim požarima.
Topliji vazduh dodatno isušuje biljni pokrivač — drveće i niska vegetacija gube vlagu i postaju podložniji požarima koji se šire brže i gore intenzivnije. Poslednjih godina primećujemo i širenje požarne sezone i pojavu velikih požara u oblastima koje su ranije retko pogođene dimom i plamenom.
Morski nivoi i dugoročne promene
Toplija voda se termički širi: čak i bez značajnog topljenja leda, porast temperature okeana podiže nivo mora. To je dodatni rizik za obalske zajednice i infrastrukturu.
Život se prilagođavao ranije, ali današnje promene su brze, a ljudi i infrastruktura su krhki.
S više od 8 milijardi ljudi koji zahtevaju hranu, sklonište, transport i energiju, porast rizika od ekstremnih vremenskih događaja ima neposredne socijalne i ekonomske posledice. Prestanak besplodnih rasprava o postojanju klimatskih promena treba da omogući fokus na prilagodljive planove i politike koje umanjuju štetu.
Elisabeth Moyer je vanredni profesor u Odeljenju za geofizičke nauke Univerziteta u Čikagu i bivša direktorka Centra za odlučivanje u neizvesnosti o klimi i energetskoj politici.
Firefighters continue to battlemassive wildfiresthreatening the French city of Bordeaux while crews in Spain struggled to control a series of forest blazes raging since last week, the result of a blisteringly hot and dry summer in Western Europe.Firefighters try to extinguishing fires burning trees using a wildland water truck near Le Porge, southwestern France on July 23, 2026.(ROMAIN PERROCHEAU, AFP via Getty Images)
A person rests with its dog in a camp bed at the Gerard Blanc festival hall in Le Porge, southwestern France on July 23, 2026, following a wildfire and the evacuation of the residents.(ROMAIN PERROCHEAU, AFP via Getty Images)
A French Civil Security Canadair CL-415 aircraft flies past flames burning a forest surrounding Cotignac, southeastern France on July 23, 2026 during a wildfire.(THIBAUD MORITZ, AFP via Getty Images)
Residents look at smoke rising behind homes during a wildfire near Lege-Cap-Ferret, southwestern France on July 23, 2026.(AFP Contributor#AFP, AFP via Getty Images)
Beach goers sit on the beach of Moutchic in Lacanau, southwestern France on July 24, 2026, as clouds of smoke rise into the sky from a wildfire.(MAXIMILIEN LAMY, AFP via Getty Images)
Firefighters battle a fire surrounding La Atalaya residential area in El Tiemblo, 80 kms west of Madrid, on July 25, 2026 amid wildfires that have burned up to 25,000 hectares.(CESAR MANSO, AFP via Getty Images)
This photograph taken from the French Civil Security rescue coordination helicopter shows a French Air Force military transport A400M aircraft making its first-ever drop of fire retardant over the wildfire near Lacanau, southwestern France, on July 25, 2026. The plane, equipped with a dispensing kit that can release 20 tonnes of water or fire retardant, was deployed by the French government to help fight wildfires.(Pool photo by Abdul Saboor via AFP via Getty Images)
This aerial view shows burned cars following a wildfire in Le Porge, in the Gironde Department, south-western France on July 25, 2026.(FLORIAN PLAUCHEUR, AFP via Getty Images)
A firefighter of Paris Fire Brigade strikes the smoldering debris with a shovel in Marcheprime west of Bordeaux on July 26, 2026 as a wildfire has been ravaging the forest north of the Arcachon Basin (Gironde) since July 22.(ROMAIN PERROCHEAU, AFP via Getty Images)
An Air Tractor AT-802F Fire Boss aircraft dumps water over a wildfire burning near San Martin de Valdeiglesias, about 70km west of Madrid, on July 26, 2026.(CESAR MANSO, AFP via Getty Images)
Residents try to put out a fire at their land during a wildfire near San Martin de Valdeiglesias, about 70 kilometers west of Madrid, on July 26, 2026.(AFP Contributor#AFP, AFP via Getty Images)
Volunteers hold a hose during a wildfire in a forest near Marcheprime, some 30km from Bordeaux, on July 26, 2026 as a wildfire has been ravaging the forest north of the Arcachon Basin in France.(ROMAIN PERROCHEAU, AFP via Getty Images)
Residents help to water the soil as a fire started in an industrial area of San Martin de Valdeiglesias, about 70km west of Madrid, on July 26, 2026.(AFP Contributor#AFP, AFP via Getty Images)
A firefighter stands before flames as a forest fire rages in Saint-Jean-d'Illac, some 30km from Bordeaux, on July 26, 2026 as a wildfire has been ravaging the forest north of the Arcachon Basin in France.(ROMAIN PERROCHEAU, AFP via Getty Images)
Ground crews worked quickly to suppress the wildfire, named the Rumsey Fire. Around 175 people were assigned by CAL FIRE to fight the blaze.
Elisabeth Moyer is an associate professor in the Department of the Geophysical Sciences at the University of Chicago.
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