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Monday, July 14, 2025

5 things to know about GLOBAL WARMING

by

Compiled with writing by Sharlene Rampersad
2346 days ago
20190210

Veda Bissram

Shar­lene Ram­per­sad

1. What is glob­al warm­ing?

Glob­al warm­ing, ac­cord­ing to cli­mate.nasa.gov, refers to the long-term warm­ing of the plan­et since the ear­ly 20th cen­tu­ry, and most no­tably since the late 1970s, due to the in­crease in fos­sil fu­el emis­sions since the In­dus­tri­al Rev­o­lu­tion. World­wide since 1880, the av­er­age sur­face tem­per­a­ture has gone up by about 1 °C (about 2 °F), rel­a­tive to the mid-20th-cen­tu­ry base­line (of 1951-1980). This is on top of about an ad­di­tion­al 0.15 °C of warm­ing from be­tween 1750 and 1880.

2. Glob­al tem­per­a­ture ris­ing

Ac­cord­ing to the Nat­ur­al Re­source De­fense Coun­cil (NRDC), an in­ter­na­tion­al­ly-based group with mem­bers around the globe that lob­by to pro­tect to pro­tect the en­vi­ron­ment, says, “Over the past 50 years, the av­er­age glob­al tem­per­a­ture has in­creased at the fastest rate in record­ed his­to­ry. And ex­perts see the trend is ac­cel­er­at­ing: All but one of the 16 hottest years in NASA’s 134-year record have oc­curred since 2000.”

The NRDC said there are sci­en­tif­ic pa­pers that prove glob­al warm­ing is re­al, de­spite what some say.

Di­rec­tor of the In­sti­tute of Ma­rine Af­fairs (IMA) in T&T, Dr Ah­mad Khan, says, “Cli­mate change is re­al, it is re­al, we see it every­day with in­creas­es in tem­per­a­ture, more se­vere weath­er events, the wave ac­tion be­ing more se­vere which is the storm surges and we see it be­ing more se­vere in the coral reefs in To­ba­go, where you have the coral reefs bleach­ing be­cause of the warm­ing of the sea.”

3. What caus­es glob­al warm­ing?

The NRDC says glob­al warm­ing oc­curs when car­bon diox­ide (CO2), air pol­lu­tants and green­house gas­es col­lect in the at­mos­phere and ab­sorb sun­light and so­lar ra­di­a­tion that have bounced off the earth’s sur­face.

“Nor­mal­ly, this ra­di­a­tion would es­cape in­to space—but these pol­lu­tants, which can last for years to cen­turies in the at­mos­phere, trap the heat and cause the plan­et to get hot­ter. That's what's known as the green­house ef­fect,” NRDC ex­plains.

In the US, the burn­ing of fos­sil fu­els to make elec­tric­i­ty is the largest source of heat-trap­ping pol­lu­tion and coal-burn­ing pow­er plants are the biggest pol­luters. The US’ sec­ond largest source of car­bon pol­lu­tion is the trans­porta­tion sec­tor, which ac­counts for 1.7 bil­lion tons of CO2 emis­sions a year.

IMA di­rec­tor, Dr Ah­mad Khan said T&T was the high­est net pro­duc­er of CO2 emis­sions in the Caribbean.

“T&T, be­cause of our in­dus­tri­al base, is the high­est net pro­duc­er of car­bon diox­ide in the Caribbean on a per capi­ta ba­sis,” Khan says. But cli­mate change is not unique to T&T, it is a glob­al phe­nom­e­non, so for the av­er­age T&T cit­i­zen, "one of the things that we have to do is re­duce the amount of car­bon diox­ide we pump in­to the at­mos­phere".

4. The ef­fects of glob­al warm­ing

The ef­fects of glob­al warm­ing on the earth’s cli­mate have been dev­as­tat­ing over the past few years. These in­clude more fre­quent droughts, longer and hot­ter heat waves, heav­ier rain­fall and more pow­er­ful hur­ri­canes.

The NRDC said the tem­per­a­ture of the earth’s ocean is al­so ris­ing, which in turn leads to stronger storms.

IMA di­rec­tor, Dr Ah­mad Khan said ris­ing sea lev­els is re­spon­si­ble for coastal ero­sion in T&T.

“There is an­oth­er as­pect to cli­mate change which is sea lev­els ris­ing when you have sea lev­el ris­ing, cou­pled with stronger and more fre­quent storm surges—you will get a greater oc­cur­rence of coastal ero­sion—if you have a coast­line that is steep, coastal ero­sion in those ar­eas will re­sult in land­slides, like in Ce­dros—be­cause the sea un­der­mined the base of the hill and it fell. For large ex­pans­es of beach­es like we have in the East coast, the storm surge and the sea lev­el rise will al­low the sea wa­ter to run fur­ther in­land be­cause the waves would break and the sea would tra­verse a larg­er range and come in­to the Nar­i­va Swamp.”

5. What can you do to re­duce your car­bon diox­ide emis­sions?

While glob­al warm­ing and its ef­fects can be daunt­ing, there are some steps that cit­i­zens can take as an in­di­vid­ual to low­er their CO2 emis­sions and help curb glob­al warm­ing.

IMA di­rec­tor, Dr Ah­mad Khan says there are small changes that peo­ple can make at home to re­duce their car­bon foot­print: •Stop the burn­ing of refuse, the burn­ing of veg­e­ta­tion like when you cut your grass and light a fire to get rid of it—don’t do those things, that cre­ates car­bon diox­ide.

•Start cut­ting back on the use of elec­tric­i­ty and air con­di­tion units to re­duce our lo­cal pow­er de­mand and re­duce the amount of car­bon diox­ide pro­duced in gen­er­at­ing elec­tric­i­ty.

•Since gas ve­hi­cles pro­duce the most amount of car­bon emis­sions, keep­ing your ve­hi­cle well tuned and car­pool­ing will al­so great­ly re­duce T&T's CO2 emis­sions.

NEXT WEEK: De­struc­tion of Man­zanil­la coast­line


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