Wingi wa msimu wa baridi kali
Sawa kwa hivyo ikiwa umekuwa ukizingatia utabiri wa hali ya hewa nchini Uingereza, na sehemu zingine za ulimwengu, ungesikia juu ya wingi wa msimu wa baridi kali, dhoruba za theluji, upepo wa barafu, baridi iliyoenea na kadhalika inayotokea. Ndio, tumekuwa tukikabiliwa na baridi kali katika sehemu nyingi za ulimwengu. Kama matokeo ya hii, watu wengi wamekuwa wakihoji uhalali halisi wa ongezeko la joto duniani. "Ikiwa msimu wa baridi bado ni baridi sana, kunawezaje kuwa na ongezeko la joto duniani?".
Hali ya hewa na hali ya hewa sio sawa
Kweli, tafadhali niruhusu nikusahihishe hapo hapo: hali ya hewa na hali ya hewa sio sawa. Wanasayansi wengi wanakubali kwamba tunahitaji kutofautisha kati ya hali ya hewa na hali ya hewa. NOAA (Utawala wa Kitaifa wa Anga na Bahari) inafafanua hali ya hewa kama wastani wa hali ya hewa kwa angalau kipindi cha miaka 30. Kwa hivyo, kushuka kwa thamani mara kwa mara - kama dhoruba kali za msimu wa baridi zinazoharibu sehemu nyingi za nchi msimu huu wa baridi - hazitii shaka sayansi ya ongezeko la joto duniani linalosababishwa na binadamu. Sivyo hata kidogo! Kwa sababu tu baadhi yetu tunateseka kupitia msimu wa baridi kali na theluji haikanuzi ukweli kwamba ulimwengu unaongezeka joto tunapoendelea kusukuma kaboni dioksidi na gesi zingine chafu angani.
Ongezeko la joto duniani linarejelea mwelekeo wa juu wa joto unaozingatiwa kote sayari. Mashirika ya shirikisho, vyuo vikuu, na vituo vya utafiti kote ulimwenguni vyote vimehitimisha kuwa Dunia inaongezeka joto. Hiyo inategemea data ngumu, kama vile vipimo vya joto kwenye ardhi na maji ulimwenguni kote kwa miongo kadhaa.
Usichanganye Matukio ya Hali ya Hewa ya Sasa na Mwenendo wa Hali ya Hewa ya Muda Mrefu
Ni rahisi kuchanganya matukio ya sasa ya hali ya hewa na mwenendo wa hali ya hewa wa muda mrefu, na ni vigumu kuelewa tofauti kati ya hali ya hewa na hali ya hewa. Kupanda na kushuka kwa kawaida kwa hali ya hewa hufanya iwe vigumu kuona mabadiliko ya polepole katika hali ya hewa. Ili kupata mwenendo wa hali ya hewa unahitaji kuangalia jinsi hali ya hewa inavyobadilika kwa muda mrefu. Kuangalia data ya joto la juu na la chini kutoka miongo ya hivi karibuni inaonyesha kuwa rekodi mpya za juu hutokea karibu mara mbili ya rekodi mpya ya chini.
Vipimo vya joto la anga vinaonyesha wastani wa joto la nyuzi joto 0.85 (nyuzi joto 1.53) kutoka 1880 hadi 2012, kulingana na Ripoti ya Tano ya Tathmini ya IPCC (AR5).
Ongezeko la joto duniani na madhara yake
Ukweli ni kwamba joto la juu linaweza kusababisha dhoruba kali zaidi za theluji. Ongezeko la joto duniani linasababisha mvua kali zaidi na dhoruba za theluji nchini Uingereza. Ongezeko la joto duniani linamaanisha hewa ya joto zaidi, na hewa ya joto inaweza kushikilia unyevu zaidi. Hii inatafsiriwa kuwa mvua kubwa kwa namna ya mvua kali zaidi au theluji, kwa sababu tu unyevu zaidi unapatikana kwa dhoruba.
Ongezeko la joto duniani bila shaka linatokea, lakini kwa sababu ni la muda mrefu na polepole, watu wengi wanadai kuwa 'hawajisikii' na, mwishowe wanahitimisha kuwa sio ukweli. Hatuhitaji 'kuhisi' kuwa ni joto zaidi kujua kwamba ulimwengu unapata joto, utafiti wa kina unathibitisha hivyo. Badala yake, tunapaswa kuzingatia njia ambazo tunaweza kukomesha ongezeko la joto duniani kwa pamoja, au tungekuwa na lawama tu.
Fomu za SignTech ni jukwaa bunifu lisilo na karatasi ambalo hubadilisha fomu na hati zilizopo kuwa fomu zisizo na karatasi ambazo zinaweza kukamilishwa kwenye vifaa vya rununu na kusainiwa kielektroniki bila mshono (pamoja na ujumuishaji kamili wa data). Kwa habari zaidi tembelea www.signtechforms.com au barua pepe expert@signtechforms.com
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