Table 15.

Senstivity analysis.

Variables	Coefficient	t-statistic	Observations	No of countries	Controls
lnbiofuels	0.976***	4.21	470	47	yes
lnbiogeo	−2.311	−1.78	639	87	yes
Lnhydro	1.002**	2.54	814	56	yes
lnsolar	0.005	0.32	449	98	yes
lnwind	−1.978*	−1.68	610	87	yes