Significant new evidence has emerged of widespread and significant increases in plant vegetation across the Earth due to the recent rise of the trace gas carbon dioxide in the atmosphere. Using what they describe as True Significant Trends – a workflow programme integrating sophisticated spatial and time-period data – a geographer and an agrobiologist in Spain found “robust quantitative evidence” of widespread global greening, describing it as “striking” – “with a significant portion of Earth’s terrestrial land surface showing measurable increases in vegetation cover over the last four decades”.