 
 <prompt> Higher levels of CO2 dey lead to two tins, average temperatures dey higher by about 10 degrees and? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Di climate of di Cretaceous dey less certain and dey more widely disputed. Higher levels of carbon dioxide for di atmosphere dey make world temperature gradient from north to south almost flat: temperatures dey almost di same across di planet. Average temperatures sef dey higher pass today by about 10°C. For fact, by di middle Cretaceous, equatorial ocean waters (maybe as warm as 20 °C for di deep ocean) fit don dey too warm for sea life, and land areas wey dey near di equator fit don dey deserts despite dem dey close to water. Di circulation of oxygen to di deep ocean fit don dey disrupted. For dis reason, large volumes of organic matter wey no fit decompose gather, and later dem go deposit am as "black shale".``` 