Revision History

Global temperatures have risen approximately 1.1°C since pre-industrial times, with warming accelerating to 0.2°C per decade since the 1980s—a rate the IPCC attributes almost entirely to human activity. The economic and human costs are substantial but contested: climate-related disasters caused over 305,000 deaths globally in the past decade while economic losses run to $200 billion annually, yet climate-related disaster death rates have fallen 98% over a century thanks to technology and infrastructure, and the sharpest disagreements center not on whether the climate is changing but on how fast to decarbonize, who should bear the costs, and whether aggressive intervention or gradual adaptation better serves the world's poorest populations.

Global temperatures have reached approximately 1.4°C above pre-industrial levels, with the past three years averaging above the 1.5°C Paris Agreement threshold. The economic, humanitarian, and political dimensions of climate change present a series of genuine tradeoffs: mitigation costs are substantial but consistently smaller than projected damages from inaction, yet the burden falls disproportionately on developing nations that contributed least to the problem. Both aggressive decarbonization advocates and fossil fuel defenders selectively cite data that supports their position while downplaying evidence that complicates it.

Global temperatures have reached 1.44°C above pre-industrial levels, fossil CO2 emissions hit a record 38.1 billion tonnes in 2025, and the remaining carbon budget for 1.5°C is virtually exhausted at roughly four years of current emissions. This data-driven investigation examines every major claim in the climate debate—from the accuracy of IPCC models to the true costs of net-zero, Germany's nuclear cautionary tale, China's coal-and-solar paradox, and the grid reliability problems that neither side honestly addresses—presenting the strongest version of each argument alongside the evidence that supports or undermines it.