An Investigation about the Impact of Innovations in Environmental Technologies on Global Warming: Evidences from Turkey

Yıl 2024, Cilt: 8 Sayı: 2, 478 - 494, 24.05.2024

Elif Koçak

https://doi.org/10.25295/fsecon.1405227

Öz

The aim of this study is to examine the impact of innovations in environmental technologies on CO2 emissions. Based on the 1990-2018 observation period, an empirical study was conducted for Turkey, which is classified as a developing and newly industrializing country (NIC). CO2 emissions, financial development index, GDP, and total environmental technology are included in the empirical model. First, the ADF and PP unit root tests were used to determine whether the model contained unit roots. As a result, it was determined that all variables had unit roots at the level values but were stationary at the first difference values. The ZA unit root test with structural breaks was used to avoid ignoring structural breaks. In line with the findings, it was discovered that under structural breaks, all variables had unit roots at their level values but became stationary at the first difference values. The ARDL bounds test and the Toda-Yamamoto causality test were used to investigate the relationship between the variables. According to the study's findings, innovations in environmental technologies have a preventive effect on global warming by lowering CO2 emissions. Additionally, no causality could be determined from innovations in environmental technologies to CO2 emissions.

Anahtar Kelimeler

Climate Change, Environmental Technology, Global Warming, EKC Hypothesis

Çevresel Teknolojik İnovasyonun Küresel Isınma Üzerindeki Etkisine İlişkin Bir İnceleme: Türkiye’den Kanıtlar

Öz

Bu çalışmanın amacı, çevresel teknolojik inovasyonun CO2 emisyonu salınımı üzerindeki etkisini incelemektir. Bunun için gelişmekte olan ve yeni sanayileşen ülke (NIC) kategorisi içerisinde yer alan Türkiye için, 1990-2018 gözlem aralığı baz alınarak ampirik bir çalışma gerçekleştirilmiştir. Ampirik modele CO2 emisyonu, finansal gelişme endeksi, kişi başına düşen GSYİH ve toplam çevresel teknoloji dahil edilmiştir. Öncelikle modelin birim kök içerip içermediği ADF ve PP birim kök testleri ile kontrol edilmiştir. Buna göre tüm değişkenlerin düzey değerlerinde birim kök içerdiği ancak birinci fark değerlerinde durağan oldukları tespit edilmiştir. Ardından yapısal kırılmaların göz ardı edilmemesi adına ZA yapısal kırılmalı birim kök testi uygulanmıştır. Bulgular doğrultusunda yapısal kırılmalar altında tüm değişkenlerin düzey değerlerinde birim kök içerdiği ancak birinci fark değerlerinde durağan hale geldikleri saptanmıştır. Değişkenler arasındaki ilişki ise ARDL sınır testi ve Toda-Yamamoto nedensellik testi ile araştırılmıştır. Çalışmanın sonuçlarına göre çevresel teknolojik inovasyonların CO2 emisyonunu azaltarak küresel ısınma üzerinde önleyici bir etkisinin olduğu tespit edilmiştir. Ayrıca çevresel teknolojik inovasyondan CO2 emisyonuna herhangi nedensellik saptanmamıştır.

Anahtar Kelimeler

Çevresel Teknoloji, EKC Hipotezi, İklim Değişikliği, Küresel Isınma

Kaynakça

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