The problem is that our economy grows faster than that rate--2.5% to 3% a year on average--so our overall carbon emissions continue to rise.

FORBES: Magazine Article

At most, he reckons, the sulphate-injection approach could counteract half of the warming the world is expected to suffer over the next 100 years if carbon-dioxide emissions continue to rise unchecked.

ECONOMIST: Geo-engineering

Although global carbon dioxide emissions continue to rapidly rise, U.S. emissions continue their 21st century decline.

FORBES: New Emissions Data Dampen Global Warming Fears

Regardless of the future pace of ongoing reductions in U.S. carbon dioxide emissions, global carbon dioxide emissions will continue to rise.

FORBES: As Carbon Dioxide Levels Continue To Rise, Global Temperatures Are Not Following Suit

If emissions of CO2 continue to rise as forecast, there could be another drop in pH up to perhaps 0.4 units by 2100.

BBC: 'Jacuzzi vents' model CO2 future