Decades of satellite data confirm the globe has been substantially greening – as defined by rising Leaf Area Index (LAI) values – since the 1980s.
The CO2 fertilization effect (CFE) enhances plant productivity via improved light use efficiency and water use efficiency. In other words, with elevated CO2, photosynthesis rates are not as hampered as they would be when sunlight and water availability are limited.
A new study indicates India is the second largest contributor to global greening, and that CFE has driven a “substantial expansion of global green cover over the last two decades.”
The authors found the CFE has “nearly doubled” the trend values in net primary production [NPP] across India relative to the trend values when the CFE is not considered.
Interestingly, despite the elevated CO2, much of India has been cooling since 2000. While the southern peninsula and parts of eastern India have been warming this century, “central and northwestern regions experienced a cooling trend.”
It should be noted that India’s annual mean non-warming trend has been ongoing since 1950 (as shown in Sanjay et al., 2020).
Image Source: Das et al., 2026
While India as a whole is experiencing rapid warming, specific regions, particularly in central and northeastern India, have experienced a relative cooling or a “warming hole” trend in surface air temperatures since the early 2000s, often attributed to increased aerosol pollution and intensive irrigation. Despite this, extreme heatwaves, maximum temperatures, and overall national temperature averages have shown significant upward trends.
Can’t fault the left’s ability to manipulate the language to suit their agenda – an area of ‘cooling’ now described as a ‘warming hole’. Perhaps it’s the one they crawled out of.
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